@� �K� PDF has (as of version 1.6) 24 graphics state properties, of which some of the most important are: As in PostScript, vector graphics in PDF are constructed with paths. endstream endobj 530 0 obj << /Type /Font /Subtype /Type1 /Encoding /WinAnsiEncoding /BaseFont /Helvetica-BoldOblique /FontDescriptor 531 0 R >> endobj 531 0 obj << /Type /FontDescriptor /Ascent 718 /CapHeight 718 /Descent -207 /Flags 262240 /FontBBox [ -174 -228 1114 962 ] /FontName /Helvetica-BoldOblique /ItalicAngle -12 /StemV 140 /XHeight 532 >> endobj 532 0 obj << /Type /Font /Subtype /Type1 /Encoding /WinAnsiEncoding /BaseFont /Helvetica-Oblique /FontDescriptor 533 0 R >> endobj 533 0 obj << /Type /FontDescriptor /Ascent 718 /CapHeight 718 /Descent -207 /Flags 96 /FontBBox [ -170 -225 1116 931 ] /FontName /Helvetica-Oblique /ItalicAngle -12 /StemV 88 /XHeight 523 >> endobj 534 0 obj << /Type /FontDescriptor /Ascent 718 /CapHeight 718 /Descent -207 /Flags 32 /FontBBox [ -166 -225 1000 931 ] /FontName /Helvetica /ItalicAngle 0 /StemV 88 /XHeight 523 >> endobj 535 0 obj << /Type /Font /Subtype /Type1 /Encoding /WinAnsiEncoding /BaseFont /Helvetica /FontDescriptor 534 0 R >> endobj 536 0 obj << /Type /ExtGState /SA false /SM 0.02 /OP false /op false /OPM 1 /BG2 /Default /UCR2 /Default /TR2 /Default >> endobj 1 0 obj << /Type /Page /Parent 510 0 R /Resources 2 0 R /Contents 3 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 2 0 obj << /ProcSet [ /PDF /Text ] /Font << /F5 273 0 R /F6 271 0 R >> /ExtGState << /GS1 4 0 R >> >> endobj 3 0 obj << /Length 819 /Filter /FlateDecode >> stream Create interesting text by developing coherent paragraphs that incorporate transitional words and sentence variety. An index table, also called the cross-reference table, is typically located near the end of the file and gives the byte offset of each indirect object from the start of the file. %PDF-1.2 %���� Adobe Reader verifies that the signature uses a certificate from an Adobe-authorized certificate authority. Such a stream may be used instead of the ASCII cross-reference table and contains the offsets and other information in binary format. DESCRIPTION Language is the vehicle of expression. Therefore, the entire PostScript world (fonts, layout, measurements) remains intact. It is the property of the imagination. [20] Fonts may be substituted if they are not embedded in a PDF. For example, a high-resolution raster image takes more space than a low-resolution one. and some code (e.g. As a result, files that use a small amount of transparency might view acceptably by older viewers, but files making extensive use of transparency could be viewed incorrectly by an older viewer without warning. PDF can specify a predefined encoding to use, the font's built-in encoding or provide a lookup table of differences to a predefined or built-in encoding (not recommended with TrueType fonts). �*��g͵����v��|�^������M�XSuB�@=��(>B���/���˗7�E�*f PDF 2.0 defines 256-bit AES encryption as standard for PDF 2.0 files. [50][51] Leading screen readers, including JAWS, Window-Eyes, Hal, and Kurzweil 1000 and 3000 can read tagged PDF. [42] The first is the Document Information Dictionary, a set of key/value fields such as author, title, subject, creation and update dates. Other PDF readers are also susceptible. [67] The submission of press-ready PDF files is a replacement for the problematic need for receiving collected native working files. The Portable Document Format (PDF) is a file format developed by Adobe in 1993 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. A text element specifies that characters should be drawn at certain positions. It is described separately in XML Forms Data Format Specification. The Forms Data Format can be used when submitting form data to a server, receiving the response, and incorporating it into the interactive form. [37] Thus, the use restrictions that a document author places on a PDF document are not secure, and cannot be assured once the file is distributed; this warning is displayed when applying such restrictions using Adobe Acrobat software to create or edit PDF files. RIPs capable of processing PDF directly include the Adobe PDF Print Engine[63] from Adobe Systems and Jaws[64] and the Harlequin RIP from Global Graphics.

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