Acrobat PDF/X - Portable Document Format - Exchange 1:1999
Unknowndocument · also known as PDF/X-1:1999
PDF/X was developed by the Committee for Graphics Arts Technologies Standards (CGATS) and Adobe. This 'exchange standard' format is based on Adobe's PDF specification and includes additional notes specifically for delivery of high quality colour advertisements. A subset of the PDF specification, and an application standard as well as a file format standard; it was considered a 'more reliable' PDF file. There are several versions of the standard, which address specific issues, PDF/X-1: 1999 was based on PDF 1.2, however there is no known implementation of this version. PDF/X-1 is the only PDF/X standard permitting encryption.
Identify it
| Extensions | .pdf |
|---|---|
| MIME types | application/pdf |
| Signatures | 255044462d at byte 0 (PDF/X-1:1999) |
| PRONOM | fmt/144 |
| Wikidata | Q29946692 |
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Convert it
| To | With | Fidelity | Command and losses |
|---|---|---|---|
| Portable Network Graphics | ImageMagick | Lossless | convert in.pdf out.pngPixels kept; some metadata, colour profiles or layers may be dropped. |
| Tagged Image File Format | ImageMagick | Lossless | convert in.pdf out.tifPixels kept; some metadata, colour profiles or layers may be dropped. |
| GIF 89a | ImageMagick | Lossy | convert in.pdf out.gifReduced to 256 colours. |
| JPEG File Interchange Format 1.02 | ImageMagick | Lossy | convert in.pdf out.jpgLossy compression. |
| WebP | ImageMagick | Lossy | convert in.pdf out.webpLossy compression. |
Sources
From PRONOM, Wikidata. Updated 2026-10-20.