Being An Acrobat: Linux and PDFs
The PDF file format can be efficiently manipulated in Linux and other free software that may not be easy in proprietary operating systems or applications. This includes a review of various PDF readers for Linux, creation of PDFs from office documents using LibreOffice, editing PDF documents, converting PDF documents to images, extracting text from non-OCR PDF documents, converting to PostScript, converting restructuredText, Markdown, and other formats, searching PDFs according to regular expressions, converting to text, extracting images, separating and combining PDF documents, creating PDF presentations from text, creating fillable PDF forms, encrypting and decrypting PDF documents, and parsing PDF documents.
A presentation to Linux Users of Victoria, Saturday June 16, 2018
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Fifteen out of 28 desktop PDF
Fifteen out of 28 desktop PDF viewer applications are vulnerable to a new attack that lets malicious threat actors modify the content of digitally signed PDF documents.
The list of vulnerable applications includes Adobe Acrobat Pro, Adobe Acrobat Reader, Perfect PDF, Foxit Reader, PDFelement, and others, according to new research [PDF] published this week by academics from the Ruhr-University Bochum in Germany.
https://pdf-insecurity.org/download/report-pdf-signatures-2020-03-02.pdf
https://www.zdnet.com/article/new-shadow-attack-can-replace-content-in-d...