Portable Document Format/Exchange
Sign in to saveAlso known as PDF/X, PDF/Exchange, .pdf, PDFX
PDF/X is a subset of the ISO standard for PDF. The purpose of PDF/X is to facilitate graphics exchange, and it therefore has a series of printing-related requirements which do not apply to standard PDF files. For example, in PDF/X-1a all fonts need to be embedded and all images need to be CMYK or spot colors. PDF/X-3 accepts calibrated RGB and CIELAB colors, while retaining most of the other restrictions of PDF/X-1a.
Key facts
- File format.name
- PDF/Exchange (Print production)
- File format.extension
- File format.mime
- application/pdf
- File format.typecode
- 'PDF ' (including a single space)
- File format.magic
- File format.owner
- ISO
- File format.extended from
- File format.standard
- ISO 15930
via Wikipedia infobox
Wikidata facts
Show 2 more facts
- file extension
- media type
- application/pdf
Sources (1)
via Wikidata · CC0
~5 min read
Article
5 sectionsContents
- List of the PDF/X standards
- Identifications
- See also
- References
- External links
PDF/X is a subset of the ISO standard for PDF. The purpose of PDF/X is to facilitate graphics exchange, and it therefore has a series of printing-related requirements which do not apply to standard PDF files. For example, in PDF/X-1a all fonts need to be embedded and all images need to be CMYK or spot colors. PDF/X-3 accepts calibrated RGB and CIELAB colors, while retaining most of the other restrictions of PDF/X-1a.
PDF/X files must not only follow certain restrictions, they also must contain a special file identification, inside the PDF, which says which PDF/X version they are. This means that a file can only conform to a single specific PDF/X standard, even if all other requirements of another version are met.