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2. List of file signatures - Wikipedia

   en.wikipedia.org/wiki/List_of_file_signatures

   List of file signatures. This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbers or Magic Bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible.

3. Adobe Sign - Wikipedia

   en.wikipedia.org/wiki/Adobe_Sign

   Adobe Acrobat Sign (formerly EchoSign, eSign & Adobe Sign) is a cloud-based e-signature service that allows the user to send, sign, track, and manage signature processes using a browser or mobile device. It is part of the Adobe Document Cloud suite of services.

4. PDF - Wikipedia

   en.wikipedia.org/wiki/PDF

   PDF files may be digitally signed, to provide secure authentication; complete details on implementing digital signatures in PDF are provided in ISO 32000-2. PDF files may also contain embedded DRM restrictions that provide further controls that limit copying, editing, or printing.

5. PAdES - Wikipedia

   en.wikipedia.org/wiki/PAdES

   PAdES (PDF Advanced Electronic Signatures) is a set of restrictions and extensions to PDF and ISO 32000-1 making it suitable for advanced electronic signatures (AdES). This is published by ETSI as EN 319 142.

6. Electronic signature - Wikipedia

   en.wikipedia.org/wiki/Electronic_signature

   An electronic signature, or e-signature, is data that is logically associated with other data and which is used by the signatory to sign the associated data. This type of signature has the same legal standing as a handwritten signature as long as it adheres to the requirements of the specific regulation under which it was created (e.g., eIDAS in the European Union, NIST-DSS in the USA or ...

7. 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]

8. Digital signature - Wikipedia

   en.wikipedia.org/wiki/Digital_signature

   Definition. A digital signature scheme typically consists of three algorithms: A key generation algorithm that selects a private key uniformly at random from a set of possible private keys. The algorithm outputs the private key and a corresponding public key. A signing algorithm that, given a message and a private key, produces a signature.

9. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   Supports OCR and export of PDF text and images. Sumatra PDF: A free (GPL), open source PDF reader based on MuPDF. It also supports DjVu, XPS, CHM, Comic Book (CBR, CBT, CBZ and CB7Z) and eBook (EPUB, FB2, FB2Z, PBD, MOBI, PBR, TCR & ZFB2), TXT and image file formats (.tga, .gif, .jpg, .j2k, .png, .webp, .tiff).

10. Advanced electronic signature - Wikipedia

    en.wikipedia.org/wiki/Advanced_electronic_signature

    The advanced electronic signature is one of the standards outlined in eIDAS. For an electronic signature to be considered as advanced, it must meet several requirements: [3] [4] The signatory can be uniquely identified and linked to the signature. The signatory must have sole control of the signature creation data (typically a private key) that ...

11. PDF Signer - Wikipedia

    en.wikipedia.org/wiki/PDF_Signer

    Proprietary. Website. pdfsign .com. PDF Signer is a PDF editor for macOS. [1] [2] This simple PDF editor was specifically designed to fill and sign PDF documents such as agreements and forms without having to print and scan them. It provides the ability to add text and scanned signature images, scribe a signature using the mouse/trackpad, re ...