Free PDF/X checker
Check PDF/X markers before you send to press
Many RIPs and print portals expect PDF/X identification. This free check looks for the PDF/X-4 markers our public profile requires — and tells you clearly that it is a marker check, not a full ISO PDF/X validation suite.
- PDF/X-4 marker expectations (GTS_PDFXVersion, OutputIntent)
- Honest wording: marker check ≠ full ISO PDF/X validation
- Same run covers bleed, colour, fonts, resolution and transparency
- Use Prepta when you need a profile-driven production export
Checking a file for someone else?
No account. One file at a time.
Runs the full free public preflight — not a single-rule toy.
Your file is deleted when the report is ready.
Free artwork check
IDLERelated tools and reading
Prefer the full overview? Use the free PDF preflight checker. Or read What is PDF/X-4? first, then come back and check a file.
- Print file checker
Check a JPG, PNG, TIFF, HEIC, PSD, AI, EPS, SVG or PDF for print — free.
- PDF bleed checker
Upload a PDF. Check bleed and trim against a real production profile — free.
- PDF CMYK checker
Check RGB vs CMYK in a PDF against a real print profile — free.
- PDF resolution checker
Check placed image DPI in a PDF against a print profile — free.
- PDF font checker
Check whether fonts are embedded for print — free Prepta Score.
- PDF transparency checker
Check live transparency in a PDF for print — free.
Common questions
What is a PDF/X checker?
A tool that checks whether a PDF carries the identification and output intent print workflows associate with PDF/X. Our free check looks for PDF/X-4 markers required by the public profile.
Is this full PDF/X-4 ISO validation?
No. We check for the markers (version string and OutputIntent) production workflows commonly require. Full ISO conformance testing is a separate, deeper process.
Do I always need PDF/X?
Not every shop requires it, but many portals and RIPs do. If your customer or press asks for PDF/X-4, failing the marker check is a useful early warning.
Can Prepta create a PDF/X file?
Full Prepta repairs and exports according to your production profile. Talk to us if you need PDF/X-oriented delivery as part of your shop workflow.