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2. PDFtk - Wikipedia

   en.wikipedia.org/wiki/Pdftk

   PDFtk (short for PDF Toolkit) is a toolkit for manipulating Portable Document Format (PDF) documents. [ 3 ] [ 4 ] It runs on Linux , Windows and macOS . [ 5 ] It comes in three versions: PDFtk Server ( open-source command-line tool ), PDFtk Free ( freeware ) and PDFtk Pro ( proprietary paid ). [ 2 ]

3. Digital signature - Wikipedia

   en.wikipedia.org/wiki/Digital_signature

   A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature on a message gives a recipient confidence that the message came from a sender known to the recipient. [1] [2]

4. Solid Converter PDF - Wikipedia

   en.wikipedia.org/wiki/Solid_Converter_PDF

   Solid Converter PDF is document reconstruction software from Solid Documents which converts PDF files to editable formats. Originally released for the Microsoft Windows operating system, a Mac OS X version was released in 2010. The current versions are Solid Converter PDF 9.0 for Windows and Solid PDF to Word for Mac 2.1.

5. XML Signature - Wikipedia

   en.wikipedia.org/wiki/XML_Signature

   XML Signature (also called XMLDSig, XML-DSig, XML-Sig) defines an XML syntax for digital signatures and is defined in the W3C recommendation XML Signature Syntax and Processing. Functionally, it has much in common with PKCS #7 but is more extensible and geared towards signing XML documents.

6. Sumatra PDF - Wikipedia

   en.wikipedia.org/wiki/Sumatra_PDF

   Sumatra PDF is a free and open-source document viewer that supports many document formats including: Portable Document Format (PDF), Microsoft Compiled HTML Help (CHM), DjVu, EPUB, FictionBook (FB2), MOBI, PRC, Open XML Paper Specification (OpenXPS, OXPS, XPS), and Comic Book Archive file (CB7, CBR, CBT, CBZ). [3]

7. Certificate signing request - Wikipedia

   en.wikipedia.org/wiki/Certificate_signing_request

   The signature constitutes a self-signature with the key pair of the applicant. Due to the self-signature requirement, this format is applicable only to types of keys that support signing. Yet there are variants of this format that do not include an actual signature, such as described in Appendix C.1 of RFC 5272 .

8. List of virtual printer software - Wikipedia

   en.wikipedia.org/wiki/List_of_virtual_printer...

   The following are distributed under free software licences: CC PDF Converter (discontinued) – A Ghostscript-based virtual printer. clawPDF – An open source virtual PDF/OCR/Image Printer with network sharing and ARM64 support. [1] cups-pdf – An open source Ghostscript-based virtual printer that can be shared with Windows users over the LAN ...

9. Digital Signature Standard - Wikipedia

   en.wikipedia.org/wiki/Digital_Signature_Standard

   It defines the Digital Signature Algorithm, contains a definition of RSA signatures based on the definitions contained within PKCS #1 version 2.1 and in American National Standard X9.31 with some additional requirements, and contains a definition of the Elliptic Curve Digital Signature Algorithm based on the definition provided by American National Standard X9.62 with some additional ...