wheelsvast.blogg.se - Pdf basics

PDF BASICS PDF
PDF BASICS PORTABLE
PDF BASICS SOFTWARE

Matching software: Adobe Acrobat 8.0 & Adobe Reader 8.0 Embedding 3D data (U3D) – a useful addition for engineers but also for the packaging and display markets.

PDF BASICS PDF

PDF 1.6 files can be used as a kind of ‘container’ file format by offering the possibility to embed files into a PDF.Direct embedding of OpenType fonts – these no longer have to be embedded as TrueType or Type 1 fonts.Some minor enhancements to annotations and tagging.NChannel – an extension of the DeviceN mechanism for defining spot colors.Matching software: Adobe Acrobat 7.0 & Adobe Reader 7.0 12 additional transitions when using PDF pages for presentations.XFA – XFA is the abbreviation to XML Forms Architecture.enhanced XRef table – XRef streams, support for more objects,….Improved compression techniques including object streams & JPEG 2000 compression.Matching software: Adobe Acrobat 6.0 & Adobe Reader 6.0 This means that meta-information like defining titles, blocks of text,… can be part of a PDF-document. Support for Tagged PDF – Tagged PDF files also contain structural information about the data that are represented by the PDF document.Improved support for JavaScript, including JavaScript 1.5 and better integration with databases.RC4 encryption – 40 bit (Acrobat 4) & 56 bit (Acrobat 4.05).Smooth shading, a technology that allows for efficient and very smooth blends (transitions from one color or tint to another).A new color space called DeviceN improves support for spot colors. Additional color spaces – ICC-based colors are supported.

Halftone functions, as well as overprint instructions, can be embedded.

Improved color support – both the CMYK color space and spot colors can be used.

Multimedia features – adding interactive page elements such as mouse events and support for additional multimedia types.

Forms – allow users to add data to a PDF or use a PDF as an electronic form.

Device-independent color – PDF 1.0 only supported RGB, which left quite some room for improvement.

Security features- protect PDF files by a password.

Article threads – articles that span multiple columns or pages are linked so that readers can easily navigate the text.

External links – embed a link to external documents or URLs.

Matching software: Adobe Acrobat 1.0 PDF 1.1 PDF 1.0Īvailability: November 1992 (announcement)/June 1993 (first software)

PDF BASICS SOFTWARE

The older software will ignore the newer features and may not be able to display page elements that use them. Backward compatibility is also pretty good: a recent PDF 1.7 file can be opened by Acrobat 4. Overall the PDF file format is remarkably flexible: obviously it is forward compatible, allowing you to open an old PDF 1.0 file in the latest version of the Adobe Reader. A more elaborate overview of the history of PDF can be found here. For each PDF version, the new features are listed. This page lists all the major releases, starting from PDF 1.0 which was released in 1993.

PDF BASICS PORTABLE

Over the years the Portable Document Format has evolved enormously.