Acrobat PDF/X - Portable Document Format - Exchange 1a:2003
Unknowndocument · also known as PDF/X-1a:2003
This 'exchange standard' format is based on Adobe's PDF 1.4 (2003) specification and includes additional notes specifically for delivery of high quality colour advertisements. It is a subset of the PDF specification, and an application standard as well as a file format standard. It is seen as a 'more reliable' PDF file.
Identify it
| Extensions | .pdf |
|---|---|
| MIME types | application/pdf |
| Signatures | 255044462d312e34 at byte 0 (PDF/X-1a:2003) |
| PRONOM | fmt/146 |
| Wikidata | Q29946771 |
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Open it
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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.