PDF Document Management Software, Services & Support
| Server | Desktop | Services | Support | Why Us? | About Us |
PDF Versions
Version 1.0 of the PDF file format was released by Adobe in 1993. Over the past many years PDF has been updated several times. The current version of PDF is 1.7.
These changes to the PDF version number represent additions to the file format. All of the "older" stuff in PDF works exactly the same way it did. None of the basic PDF text drawing primitives have changed.
As such, PDF 1.0 is still perfectly valid and usable, and remains the basis for all PDF files in existence today; it simply can not be used to represent more advanced features or graphics found in later versions of PDF.
The PDF version number is stored in the first line of the header of the PDF file; and, will look like %PDF-1.3
Following is a list of new document features which are available in the various versions of PDF.
| Updates | |
|---|---|
|
1.1
|
Document Encryption (40 bit), Article Threads, Named Destinations, Link Actions and Device Independent Color Resources |
|
1.2
|
Form Fields, Halftone Screens and other advanced color features, and support for Chinese, Japanese and Korean text |
|
1.3
|
Digital Signatures, Logical Structure, JavaScript, Embedded Files, Masked Images, Smooth Shading, Support for additional color spaces and CID fonts |
|
1.4
|
Document Encryption (128 bit), Tagged PDF, Accessibility Support, Transparency, Metadata Streams |
|
1.5
|
Document Encryption (Public Key), JPEG 2000 Compression, Optional Content Groups, Additional Annotation Types |
|
1.6
|
Document Encryption (AES), Increase Maximum Page Size, Incorporate 3D Artwork, Additional Annotation Types |
|
1.7
|
Some additional annotation support for 3D and engineering. |
see Portable Document Format (PDF)
see PDF Reference
Would you like the support team to add a term to the Glossary of PDF Terms? Email the support team and let us know!
