Format
PDF Portfolio
Summary
- Name
- PDF Portfolio
- Version
- 1.7
- Identifiers
- PUID: fmt/1451
- Format type
- Aggregate
- Description
- PDF Portfolio files are PDFs using a feature added to the PDF specification in version 1.7 called "Collections". Collections offer a way to embed file attachments that are related in structure or content, as well as information that a reader application should use to determine how to present these files. A simple metadata schema can also be defined for the collection, allowing metadata to be provided for each item in the collection. Additionally, folder structure can be provided for the collection items, allowing reader applications to present the attachments with a tree-view. This makes the PDF Portfolio a convenient format to export mailboxes as mail folder structure can be preserved, along with standard email metadata such as "To", "From" and "Subject" fields. PDF Portfolio files can specify a "default view", which is a file in the collection that a reader application should display when opening the Portfolio.
- File extensions
-
pdf - Source
- Preservica / Preservica
- Developed by
- Adobe Systems Incorporated
- Supported by
- Adobe Systems Incorporated
Relationships
- Has priority over
Internal signatures
PDF Portfolio 1.7
- Note
- BOF: %PDF-1.7 followed by '/Collection '. EOF (offset up to 1024 bytes): '%%EOFF(.|F.|F..|F..)'
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
255044462D312E37*2F436F6C6C656374696F6E20- Endianness
- None
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 1024
- Byte Sequence
2525454F(46|460A|460D|460D0A|460D00)- Endianness
- None
Changelog
-
Updated in V118
- Release date
- 30 April 2024
PDF Portfolio 1.7: Signature modified to no longer search for '<</Cl<<' block. Submitted by Archeological Data Service and Preservica.
-
Added in V98
- Release date
- 27 October 2021
PDF Portfolio: Signature developed and samples provided by Preservica.
PDF Portfolio: Full entry added. Submitted by Preservica.