New Tool: pdftool.py

pdftool.py is a new tool I developed. This version has only one command: iu (incremental updates).

With this command, one can check if a PDF has incremental updates, and then select different versions of this PDF with incremental updates.

A PDF with incremental updates, is a PDF that has been modified by appending changes to the document at the end of the PDF file, without modifying the original content.

Here is a video explaining incremental updates and the use of my tool.

I reference 2 blog posts in the video: “Solving a Little PDF Puzzle” and “Shoulder Surfing a Malicious PDF Author“.

pdftool_V0_0_1.zip (https)
MD5: ED2BBE886008C737CC06E22F4F0FE8A1
SHA256: 401E88FBFAEC4382A50FE59430D04FE6111F9911958AB09BA7530C26043FDA87

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Select a language: Afrikaans Albanian Arabic Armenian Basque Bengali Bulgarian Catalan Cambodian Chinese (Mandarin) Croatian Czech Danish Dutch English Estonian Fiji Finnish French Georgian German Greek Gujarati Hebrew Hindi Hungarian Icelandic Indonesian Irish Italian Japanese Javanese Korean Latin Latvian Lithuanian Macedonian Malay Malayalam Maltese Maori Marathi Mongolian Nepali Norwegian Persian Polish Portuguese Punjabi Quechua Romanian Russian Samoan Serbian Slovak Slovenian Spanish Swahili Swedish Tamil Tatar Telugu Thai Tibetan Tonga Turkish Ukrainian Urdu Uzbek Vietnamese Welsh Xhosa <p>pdftool.py is a new tool I developed. This version has only one command: iu (incremental updates).</p> <p>With this command, one can check if a PDF has incremental updates, and then select different versions of this PDF with incremental updates.</p> <p><img loading="lazy" data-attachment-id="8237" data-permalink="https://blog.didierstevens.com/2021/01/31/new-tool-pdftool-py/20210130-223031-2/" data-orig-file="https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png" data-orig-size="1000,201" data-comments-opened="1" data-image-meta="{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}" data-image-title="20210130-223031" data-image-description="" data-medium-file="https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png?w=300" data-large-file="https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png?w=1000" src="https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png?w=1000&h=201" class="alignnone size-full wp-image-8237" alt="" width="1000" height="201" srcset="https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png 1000w, https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png?w=128&h=26 128w, https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png?w=300&h=60 300w, https://didierstevens.files.wordpress.com/2021/01/20210130-223031-1.png?w=768&h=154 768w" sizes="(max-width: 1000px) 100vw, 1000px"></p> <p>A PDF with incremental updates, is a PDF that has been modified by appending changes to the document at the end of the PDF file, without modifying the original content.</p> <p><img loading="lazy" data-attachment-id="8240" data-permalink="https://blog.didierstevens.com/2021/01/31/new-tool-pdftool-py/20210130-230626/" data-orig-file="https://didierstevens.files.wordpress.com/2021/01/20210130-230626-1.png" data-orig-size="599,552" data-comments-opened="1" data-image-meta="{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}" data-image-title="20210130-230626" data-image-description="" data-medium-file="https://didierstevens.files.wordpress.com/2021/01/20210130-230626-1.png?w=300" data-large-file="https://didierstevens.files.wordpress.com/2021/01/20210130-230626-1.png?w=599" src="https://didierstevens.files.wordpress.com/2021/01/20210130-230626-1.png?w=599&h=552" class="alignnone size-full wp-image-8240" alt="" width="599" height="552" srcset="https://didierstevens.files.wordpress.com/2021/01/20210130-230626-1.png 599w, https://didierstevens.files.wordpress.com/2021/01/20210130-230626-1.png?w=104&h=96 104w, https://didierstevens.files.wordpress.com/2021/01/20210130-230626-1.png?w=300&h=276 300w" sizes="(max-width: 599px) 100vw, 599px"></p> <p>Here is a video explaining incremental updates and the use of my tool.</p> <p>I reference 2 blog posts in the video: “<a href="https://blog.didierstevens.com/2008/05/07/solving-a-little-pdf-puzzle/">Solving a Little PDF Puzzle</a>” and “<a href="https://blog.didierstevens.com/2008/11/10/shoulder-surfing-a-malicious-pdf-author/">Shoulder Surfing a Malicious PDF Author</a>“.</p> <p><iframe class='youtube-player' width='640' height='360' src='https://www.youtube.com/embed/qfk6aoYLbi8?version=3&rel=1&%23038;showsearch=0&%23038;showinfo=1&%23038;iv_load_policy=1&%23038;fs=1&%23038;hl=en&%23038;autohide=2&%23038;wmode=transparent' allowfullscreen='true' style='border:0;' sandbox='allow-scripts allow-same-origin allow-popups allow-presentation'></iframe></p> <p><a href="http://didierstevens.com/files/software/pdftool_V0_0_1.zip" >pdftool_V0_0_1.zip</a> (<a href="https://didierstevens.com/files/software/pdftool_V0_0_1.zip" >https</a>)<br /> MD5: ED2BBE886008C737CC06E22F4F0FE8A1<br /> SHA256: 401E88FBFAEC4382A50FE59430D04FE6111F9911958AB09BA7530C26043FDA87</p> First name:

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