Details: File format summary

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Properties

Summary
Name	PDF/UA Portable Document Format
Version	1
Other names	PDF/UA-1
Identifiers	MIME: application/pdf PUID: fmt/2050
Family
Classification	Page Description
Disclosure
Description	Standardized by ISO 14289-1:2014, PDF/UA-1 is a constrained subset of PDF 1.7 (ISO 32000-1) focused on maximising accessibility and support for assistive technologies. Note that files may conform to both PDF/UA and PDF/A, which will result in multiple identification outcomes from DROID. Neither format is the more specific PDF subset, so it is inappropriate to prioritise identification of one over the other.
Orientation
Byte order
Related file formats	Has priority over Acrobat PDF 1.7 - Portable Document Format (1.7)
Technical Environment
Released
Supported until
Format Risk
Developed by	ISO / ISO
Supported by	ISO / ISO
Source	Preservica / Preservica
Source date	21 Jul 2025
Source description	v.121: new PUID.
Last updated	21 Jul 2025
Note