xthiago/pdf-version-converter

PHP library for converting the version of PDF files (for compatibility purposes).

PDF version converter

PHP library for converting the version of PDF files (for compatibility purposes).

Requirements

• PHP 5.3+
• Ghostscript (gs command on Linux)

Installation

Run php composer.phar require xthiago/pdf-version-converter dev-master or add the follow lines to composer and run composer install:

{
    "require": {
        "xthiago/pdf-version-converter": "dev-master"
    }
}

Usage

Guessing a version of PDF File:

<?php

// import the composer autoloader
require_once __DIR__.'/vendor/autoload.php'; 

// import the namespaces
use Xthiago\PDFVersionConverter\Guesser\RegexGuesser;
// [..]

$guesser = new RegexGuesser();
echo $guesser->guess('/path/to/my/file.pdf'); // will print something like '1.4'

Converting file to a new PDF version:

<?php

// import the composer autoloader
require_once __DIR__.'/vendor/autoload.php'; 

// import the namespaces
use Symfony\Component\Filesystem\Filesystem,
    Xthiago\PDFVersionConverter\Converter\GhostscriptConverterCommand,
    Xthiago\PDFVersionConverter\Converter\GhostscriptConverter;

// [..]

$command = new GhostscriptConverterCommand();
$filesystem = new Filesystem();

$converter = new GhostscriptConverter($command, $filesystem);
$converter->convert('/path/to/my/file.pdf', '1.4');

Contributing

Is really simple add new implementation of guesser or converter, just implement GuessInterface or ConverterInterface.

Running unit tests

Run phpunit -c tests.

pdf-version-converter's Issues

Filename special chars escape

When you try to convert a PDF with some special chars in the filename it breaks the plugin.

Wrong PDF Version

Hi, nice to found this awesome library.

I was used this package for my project to converting a PDF file version to 1.4 if the origin file has version above 1.4. But I got wrong version, so the converting process not called.

Here the original PDF version by macOS info vs version from this library.

How can I solve this problem?

Thanks in advance

Class 'Symfony\Component\Filesystem\Filesystem' not found

Please help , here is an PHP error , class not found ...could you please let me know where is Filesystem class inside your package. ?

This class is not found on index.php where i am using the function .

my code

<?php
// import the namespaces
use Symfony\Component\Filesystem\Filesystem,
    Xthiago\PDFVersionConverter\Converter\GhostscriptConverterCommand,
    Xthiago\PDFVersionConverter\Converter\GhostscriptConverter;

require_once 'Xthiago/PDFVersionConverter/GhostscriptConverterCommand.php';
require_once 'Xthiago/PDFVersionConverter/GhostscriptConverter.php';
require_once 'Xthiago/PDFVersionConverter/ConverterInterface.php';

$command = new GhostscriptConverterCommand();
$fs = new Filesystem();

$converter = new GhostscriptConverter($command, $fs);
$converter->convert('file.pdf', '1.4');

?>

Invoking Ghostscript on different systems

The method of invoking Ghostscript can vary on systems, e.g. Windows vs. Linux. As mentioned in the docs:

The command line to invoke Ghostscript is essentially the same on all systems, although the name of the executable program itself may differ among systems

In my situation, when using Ghostscript on Windows 7 64-bit there are two available executables:

1. gswin64 - opens a new type-in window
2. gswin64c - runs commands in the console

So gswin64c is what I want to use in combination with my PHP applications.

In Xthiago\PDFVersionConverter\Converter\GhostscriptConverterCommand the method of invoking Ghostscript is gs, however, when running this on my system it won't work and I get the expected error:

RuntimeException: 'gs' is not recognized as an internal or external command, operable program or batch file.

I'm guessing the quick solution is to rename the Ghostscript executable from gswin64c to gs, but would you consider some modifications to the pdf-version-converter package to either allow the user to modify the name of the executable (via some form of config?) or perhaps even by detecting the environment (overkill maybe?) or perhaps something simpler?

I'd be happy to submit a PR for this but would appreciate any thoughts/guidance first on how this should be dealt with even though I imagine this probably affects a small minority of users.

There was an error extracting the ZIP file, it is either corrupted or using an invalid format.

While installing in windows 10 machine ,
I installed ghostscript and added it to PATH environment variable but still this error .
"There was an error extracting the ZIP file, it is either corrupted or using an invalid format."

heres the screenshot : https://imgur.com/a/f3vxZ

Getting Error sh: 1: gs: not found\n

I am trying to convert version of pdf file from 1.7 to 1.4, i am getting this error: sh: 1: gs: not found\n

Extend timeout

Extend timeout of \Process() for long pdf.

r

File size increse issue

I convert pdf file version 1.6 to 1.4. but i found file size increase. old file size is 9.9 MB and new file size is 62.3 MB.

Temp directory is static

PHP 5.2.1 function sys_get_temp_dir() exists to retrieve the proper temp directory for the OS.

Error during composer install

composer require xthiago/pdf-version-converter dev-master
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals

• Installing xthiago/pdf-version-converter (dev-master 10bfb95): Cloning 10bfb95
  10bfb95 is gone (history was rewritten?)
  Failed to download xthiago/pdf-version-converter from source: Failed to execute git checkout '10bfb95366359925025501fea662d4cf4e3735f0' -- && git reset --hard '10bfb95366359925025501fea662d4cf4e3735f0' --

Note: checking out '10bfb95366359925025501fea662d4cf4e3735f0'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

git checkout -b new_branch_name

HEAD is now at 10bfb95... Merge pull request #10 from edegaudenzi/master
error: unable to create file tests/files/repo/v1.7 filename with "Sp3ci4l"; <'Ch4r5'> !£$%&()=?^[]{}è@#§.pdf (Protocol error)
fatal: Could not reset index file to revision '10bfb95366359925025501fea662d4cf4e3735f0'.

Now trying to download from dist

• Installing xthiago/pdf-version-converter (dev-master 10bfb95): Downloading (100%)
  Installation failed, reverting ./composer.json to its original content.

installation problem

Hello thiago,

after I run the command (composer install), I do not have the folder "Xthiago \ PDFVersionConverter"
so I created an index.php file:

`<?php
// import the namespaces
use Xthiago\PDFVersionConverter\Guesser\RegexGuesser;
// [..]

$guesser = new RegexGuesser();
echo $guesser->guess('/path/to/my/file.pdf'); // will print something like '1.4'`

I have the following error:

Fatal error: Class 'Xthiago \ PDFVersionConverter \ Guesser \ RegexGuesser' not found in C: \ wamp \ www \ pdf-version-converter-1.0.5 \ index.php on line 6

thank you for your help

Compatibility Laravel 7

hi,
i need your package for using in laravel 7. Therefore symfony/process needs be updated to version 5.
in version 5 the command needs to be given to the process() as array like described here https://symfony.com/doc/current/components/process.html#usage . i changed the run function in your class GhostscriptConverterCommand
to this:

$command = sprintf($this->baseCommand, $newVersion, $newFile);
        $command_new = explode(' ',$command);        
        array_push($command_new,$originalFile);                
        $process = new Process($command_new);
        $process->run();

and the $baseCommand to this
protected $baseCommand = 'gs -sDEVICE=pdfwrite -dCompatibilityLevel=%s -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -dColorConversionStrategy=/LeaveColorUnchanged -dEncodeColorImages=false -dEncodeGrayImages=false -dEncodeMonoImages=false -dDownsampleMonoImages=false -dDownsampleGrayImages=false -dDownsampleColorImages=false -dAutoFilterColorImages=false -dAutoFilterGrayImages=false -dColorImageFilter=/FlateEncode -dGrayImageFilter=/FlateEncode -sOutputFile=%s';

for my use case it's working now.

Converted files are not saved sometimes

Hi,
When copying the converted file via Symfony FS, here sometimes the new file is not overwritten.

I think this is the default behavior for copy function, It is described here.
https://github.com/symfony/filesystem/blob/master/Filesystem.php#L27
Just wanted to let you know.

Thank you for the useful library.

GPL Ghostscript 9.26: Unrecoverable error, exit code 1 in GhostscriptConverterCommand.php line 39

(1/1) RuntimeExceptionGPL Ghostscript 9.26: Unrecoverable error, exit code 1

in GhostscriptConverterCommand.php line 39
at GhostscriptConverterCommand->run('http://192.168.10.10//storage/transcripts/H2ZEBkTp6YRpuSf7XzA1iiyjv4zuqKvXDI9Y0hdd.pdf', '/tmp/pdf_version_changer_5f81e1fbc8387.pdf', '1.4')in GhostscriptConverter.php line 66
at GhostscriptConverter->convert('http://192.168.10.10//storage/transcripts/H2ZEBkTp6YRpuSf7XzA1iiyjv4zuqKvXDI9Y0hdd.pdf', '1.4')in DocumentController.php line 34
at DocumentController->index(object(Request), object(DocumentsRepository))
at call_user_func_array(array(object(DocumentController), 'index'), array(object(Request), object(DocumentsRepository)))in Controller.php line 55
at Controller->callAction('index', array(object(Request), object(DocumentsRepository)))in ControllerDispatcher.php line 44
at ControllerDispatcher->dispatch(object(Route), object(DocumentController), 'index')in Route.php line 203

Information:
Laravel - v5.4
PHP - v7.4
Test PDF - v1.4 (secured file) / v1.2 (dummy file)

Any help/guidance to understand this issue would be great.

Typo

Hi

In the Xthiago\PDFVersionConverter\Converter\GhostscriptConverter class, at the 49. line, theres a typo.
Theres $this->$tmp = $tmp;
when i guess it should be $this->tmp = $tmp;

sh: gs: command not found

I have a problem while converting pdf file version. when I hit to convert it gives me this error "sh: gs: command not found". I am using the mac, I have already installed Ghostscript but still getting this error. I have type gs in my terminal it goes to GS but still getting the error.

Installation problem

Hi, thanks for this package. I am having some issues installing via composer in a Laravel project (5.3) just wondering how I can fix it. Am I unable to install if Laravel is using a newer version of Syfony?

My console output:

λ composer require xthiago/pdf-version-converter dev-master                                                                 
./composer.json has been updated                                                                                            
Loading composer repositories with package information                                                                      
Updating dependencies (including require-dev)                                                                               
Your requirements could not be resolved to an installable set of packages.                                                  
                                                                                                                            
  Problem 1                                                                                                                 
    - Installation request for xthiago/pdf-version-converter dev-master -> satisfiable by xthiago/pdf-version-conver        
ter[dev-master].                                                                                                            
    - Conclusion: remove symfony/process v3.1.5                                                                             
    - Conclusion: don't install symfony/process v3.1.5                                                                      
    - xthiago/pdf-version-converter dev-master requires symfony/process ~2.3 -> satisfiable by symfony/process[v2.3.        
0, v2.3.1, v2.3.10, v2.3.11, v2.3.12, v2.3.13, v2.3.14, v2.3.15, v2.3.16, v2.3.17, v2.3.18, v2.3.19, v2.3.2, v2.3.20        
, v2.3.21, v2.3.22, v2.3.23, v2.3.24, v2.3.25, v2.3.26, v2.3.27, v2.3.28, v2.3.29, v2.3.3, v2.3.30, v2.3.31, v2.3.32        
, v2.3.33, v2.3.34, v2.3.35, v2.3.36, v2.3.37, v2.3.38, v2.3.39, v2.3.4, v2.3.40, v2.3.41, v2.3.42, v2.3.5, v2.3.6,         
v2.3.7, v2.3.8, v2.3.9, v2.4.0, v2.4.1, v2.4.10, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.4.9, v2.        
5.0, v2.5.1, v2.5.10, v2.5.11, v2.5.12, v2.5.2, v2.5.3, v2.5.4, v2.5.5, v2.5.6, v2.5.7, v2.5.8, v2.5.9, v2.6.0, v2.6        
.1, v2.6.10, v2.6.11, v2.6.12, v2.6.13, v2.6.2, v2.6.3, v2.6.4, v2.6.5, v2.6.6, v2.6.7, v2.6.8, v2.6.9, v2.7.0, v2.7        
.1, v2.7.10, v2.7.11, v2.7.12, v2.7.13, v2.7.14, v2.7.15, v2.7.16, v2.7.17, v2.7.18, v2.7.19, v2.7.2, v2.7.20, v2.7.        
3, v2.7.4, v2.7.5, v2.7.6, v2.7.7, v2.7.8, v2.7.9, v2.8.0, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.2, v2.8.        
3, v2.8.4, v2.8.5, v2.8.6, v2.8.7, v2.8.8, v2.8.9].                                                                         
    - Can only install one of: symfony/process[v2.3.0, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.1, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.10, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.11, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.12, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.13, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.14, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.15, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.16, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.17, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.18, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.19, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.2, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.20, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.21, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.22, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.23, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.24, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.25, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.26, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.27, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.28, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.29, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.3, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.30, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.31, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.32, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.33, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.34, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.35, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.36, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.37, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.38, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.39, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.4, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.40, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.41, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.42, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.3.5, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.6, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.7, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.8, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.3.9, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.0, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.1, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.10, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.4.2, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.3, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.4, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.5, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.6, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.7, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.8, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.4.9, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.0, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.1, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.10, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.5.11, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.5.12, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.5.2, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.3, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.4, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.5, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.6, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.7, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.8, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.5.9, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.0, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.1, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.10, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.6.11, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.6.12, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.6.13, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.6.2, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.3, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.4, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.5, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.6, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.7, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.8, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.6.9, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.0, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.1, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.10, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.11, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.12, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.13, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.14, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.15, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.16, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.17, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.18, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.19, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.2, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.20, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.7.3, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.4, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.5, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.6, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.7, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.8, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.7.9, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.0, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.1, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.10, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.8.11, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.8.12, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.8.13, v3.1.5].                                                            
    - Can only install one of: symfony/process[v2.8.2, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.3, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.4, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.5, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.6, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.7, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.8, v3.1.5].                                                             
    - Can only install one of: symfony/process[v2.8.9, v3.1.5].                                                             
    - Installation request for symfony/process (locked at v3.1.5) -> satisfiable by symfony/process[v3.1.5].                
                                                                                                                            
                                                                                                                            
Installation failed, reverting ./composer.json to its original content.                                                     

PDF size increased

Thanks for this library, it's working very well but facing an issue. After changing the version from 1.7 to 1.4 my 393 KB pdf size converted into 35MB. Is there any solution of this issue.