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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
PDF's emphasis on preserving the visual appearance of documents across different software and hardware platforms poses challenges to the conversion of PDF documents to other file formats and the targeted extraction of information, such as text, images, tables, bibliographic information, and document metadata. Numerous tools and source code ...
Original file (1,239 × 1,754 pixels, file size: 906 KB, MIME type: application/pdf, 9 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...
Default PDF and file viewer for GNOME; replaces GPdf. Supports addition and removal (since v3.14), of basic text note annotations. CUPS: Apache License 2.0: No No No Yes Printing system can render any document to a PDF file, thus any Linux program with print capability can produce PDF files Pdftk: GPLv2: No Yes Yes
In the table below, the column "ISO 8859-1" shows how the file signature appears when interpreted as text in the common ISO 8859-1 encoding, with unprintable characters represented as the control code abbreviation or symbol, or codepage 1252 character where available, or a box otherwise. In some cases the space character is shown as ␠.
Office Open XML — .docx (XML-based standard for office documents) OpenDocument — .odt (XML-based standard for office documents) OpenOffice.org XML — .sxw (open, XML-based format for office documents) OXPS — Open XML Paper Specification (Windows 8.1 and above, older version is XPS used in Windows 7) PalmDoc — handheld document format ...
To alleviate the problem, many software companies distribute free file viewers for their proprietary file formats (one example is Adobe's Acrobat Reader). The other solution is the development of standardized non- proprietary file formats (such as HTML and OpenDocument ), and electronic documents for specialized uses have specialized formats ...