Convert your PDF to PDF/X-4
Printers ask for PDF/X — the ISO standard for reliable colour. Upload your PDF, pick your printer’s print profile and we convert it to PDF/X-4: colours truly converted to that profile, fonts embedded and a clean file that is ready to send.
Paid tool
This conversion needs a paid package: one-time from €5, or a subscription. Your file stays ready while you check out.
See the packages You can check if your PDF is print-ready for free
The difference
A normal PDF often is not press-ready
- Your printer rejects the file because it is not PDF/X.
- Screen colours (RGB) shift unpredictably on a printing press.
- Many online tools only write a profile name into the file without converting the colours — so your ad still exceeds the ink coverage the newspaper allows.
- Interactive elements or encryption sneak in and break delivery.
PDF/X-4 in one upload
- A real PDF/X-4 file your printer can accept.
- Colours truly converted to the print profile you choose — not just a label.
- Missing fonts are embedded; if that is not possible, you get a clear message instead of a silently swapped font.
- A clean file — no encryption, JavaScript or interactive forms.
How it works
Upload your PDF
Drop one PDF or a ZIP with several and pick your printer’s print profile — guests can upload too.
We convert to PDF/X-4
We convert the colours to the chosen print profile, embed that profile as the output intent, add missing fonts and clean up the file structure.
Download the result
Get a press-ready PDF/X-4 back — one file, or a ZIP for multiple.
What you get
Everything a printer expects from a PDF/X-4 file.
PDF/X-4 standard
The modern ISO 15930-7 print-exchange standard, accepted by virtually every printer.
Your choice of print profile
FOGRA51, FOGRA39 (also capped at 300% ink), FOGRA52 or a newsprint profile (v4 or v5) as the output intent — and your colours are actually converted to that profile.
CMYK colour
RGB and existing CMYK colours are converted to the inks and paper of the chosen profile.
Embedded fonts
Fonts not yet in your PDF are embedded, so the printer renders the right letters.
When to use it
Sending to a printer
Deliver the PDF/X-4 your print shop asks for, without back-and-forth.
Design agencies
Hand off press-ready files to clients and printers in a consistent standard.
Newspaper ads
Deliver an ad on the newsprint profile the paper asks for — ISOnewspaper26v4 (max. 240% ink) or WAN-IFRAnewspaper26v5 (max. 220%).
Final delivery step
Turn a finished design into the exact format the printer needs as the last step.
Learn more about print-ready PDF
How to make a print-ready PDF: the complete guide
CMYK, fonts, bleed and PDF/X — everything a printer needs, explained step by step.
Read articleConvert a PDF to grayscale without Acrobat
Turn a colour PDF into clean black-and-white for cheaper, predictable printing.
Read articleCompress, rasterise and repair your PDFs
Shrink large files and fix problem PDFs before you send them to print.
Read articleFrequently asked questions
What is PDF/X-4?
PDF/X-4 is the ISO 15930-7 standard for delivering files to print. It guarantees managed CMYK colour, embedded fonts and an output intent, so a printer can reproduce your file reliably.
Is the output a certified PDF/X-4 file?
We build the file to the PDF/X-4 structure — colours converted to your print profile, an output intent, embedded fonts and a cleaned-up file. It is not formally certified by an external validator. In practice printers accept it directly; if your printer requires a preflight report (for example to GWG specs), run their preflight as a final check.
Which print profiles can I choose?
Six: FOGRA51 (PSO Coated v3) for coated paper, the current European standard; FOGRA39 (ISO Coated v2) for printers that still ask for the older standard, also as ISO Coated v2 300% with a 300% ink cap; FOGRA52 (PSO Uncoated v3) for uncoated paper; and for newspaper printing ISOnewspaper26v4 (max. 240% ink) or its successor WAN-IFRAnewspaper26v5 (max. 220%). Not sure? Choose FOGRA51 or ask your printer which profile they want. The profile is not a loose label: your colours are actually converted to it.
Will my fonts be embedded?
Yes — fonts not yet in your PDF are embedded. If we could only embed a font by replacing it, we stop with a clear message instead of silently setting your text in another font. Only the standard PDF fonts (such as Helvetica) are replaced by a font with exactly the same letter widths (such as Arial). The free print-ready check tells you up front whether fonts are missing.
How many credits does it cost?
Converting to PDF/X-4 costs 4 credits per document. Multiple files are processed in one go and returned as a ZIP.
Related tools
Make print-ready
All-in-one: prepares your PDF (bleed, sizing) and reports what your printer still needs (CMYK, fonts, PDF/X) for full press-readiness.
Open toolRGB to CMYK
Convert screen colours (RGB) to print colours (CMYK) using standard device CMYK.
Open toolEmbed fonts
Embed all fonts so the printer renders the correct letters, not substitutes.
Open toolConvert your PDF to PDF/X-4
Upload your PDF and download a print-ready PDF/X-4 file in seconds.