How to fix "your file is not PDF/X-1a compliant"
Updated October 31, 2026 · IngramSpark · Barnes & Noble Press · Lulu
Not every PDF is a print PDF. PDF/X-1a is a stricter kind built for printers, and IngramSpark asks for it.
The error: “The file is not PDF/X-1a compliant”
The file is not PDF/X-1a compliant
Paraphrased. Each printer words this a little differently.
Other ways people search for this error
- “PDF/X-1a required”
- “Not a PDF/X-1a file”
- “How to save as PDF/X-1a”
Quick fix: SparkPrep scans your cover and interior against the exact platform rules, pinpoints the issue, and fixes it for you with one click.
Why you get “The file is not PDF/X-1a compliant”
PDF/X-1a is a print standard. It requires CMYK or grayscale color (no RGB), every font embedded, no live transparency, and a note inside the file saying which printing conditions it was made for (the "output intent").
A regular "Save as PDF" from Word or a "PDF Standard" download from Canva doesn't meet those rules, so IngramSpark's checks flag it. Barnes & Noble Press and Lulu also ask for PDF/X-1a files. KDP doesn't require PDF/X-1a, but a PDF/X-1a file works there too.
How to fix “The file is not PDF/X-1a compliant” manually (the hard way)
If you want to try adjusting the files yourself, here are the steps you need to follow:
- Open your original file.
- Convert all color to CMYK (or grayscale for black and white pages) and embed every font.
- In InDesign, go to File → Export → Adobe PDF (Print) and pick the "PDF/X-1a:2001" preset. Word can't make PDF/X-1a by itself, so use Acrobat Pro: Print Production → Preflight → "Convert to PDF/X-1a".
- Run Acrobat's Preflight to confirm the file is PDF/X-1a compliant.
- Re-upload it to your printer and wait for the file review again. If it fails, you start over.
You can fix this by hand with the steps above. Or drop your file into SparkPrep and let it find the problem and fix it for you, in minutes. Try it on your file.
How to fix it instantly (the SparkPrep way)
If you don't have expensive design software, or you just want to get your book published without the headache, let SparkPrep handle it.
SparkPrep was built by a self-published author whose own book was rejected 18 times. It checks your files against the exact print rules Amazon KDP, IngramSpark, Barnes & Noble Press and Lulu publish.
When you upload your file to SparkPrep:
- We automatically scan for page size, bleed, spine width, safety margins, ink coverage and embedded fonts.
- We explain any hidden errors in plain English.
- We fix what can be fixed automatically, tell you exactly what's left, and export a print-ready PDF/X-1a, checked again before you download it.
Stop fighting the bots. Drop your file into SparkPrep today and get back to marketing your book!
Make my PDF/X-1aWhat it costs to get this fixed
| Hire a professional cover designer and interior formatter | SparkPrep | |
|---|---|---|
| Price | About $930 for the cover plus about $800 for the inside pages: around $1,730 | One price per book for the cover, the inside pages, or both |
| Time | Book a freelancer, wait for their schedule, then go back and forth on changes | Upload and get your fixed, print-ready files in minutes |
| Printer check | Depends on the freelancer | Checked against your printer's own rules, every time |
Freelancer prices are Reedsy's own published figures (source). A great designer is worth it for original artwork. If you just need your files right for the printer, you don't need to pay designer prices.
Quick answers
Does IngramSpark require PDF/X-1a?
IngramSpark asks for PDF/X-1a:2001 files. It's the safest format to send them.
Can Word export PDF/X-1a?
No. Word's PDF export isn't PDF/X-1a. You need a tool like Acrobat Pro, InDesign or SparkPrep to make one.
More guides
- White vs cream paper: how your paper choice changes your spine
- KDP vs IngramSpark vs Lulu vs Barnes & Noble Press: print file rules side by side
- All guides
SparkPrep is an independent tool and is not affiliated with Amazon KDP, IngramSpark, Barnes & Noble Press or Lulu.