My PDF is too large or too complex

Our limit per file is 50 MB. Beyond that, use our compressor tool before import.

Most PDFs over 50 MB contain unoptimised high-resolution images.

If your PDF is locked, first open it in your browser (Chrome or Safari) or Adobe Reader, enter the password, then use "Print > Save as PDF" to produce an unlocked copy importable into iFillPDF.

You must legitimately own the password — iFillPDF does not bypass any protection (cf. Computer Fraud and Abuse Act in the US, Computer Misuse Act in the UK).

For scanned PDFs, OCR (AWS Textract eu-central-1) activates automatically. If scan quality is poor, redo it at 300 dpi minimum, in colour (not B&W), without rotation.

For complex AcroForm forms (multi-page government forms, notarial contracts), you can manually trace fields in "advanced editor" mode.

If your PDF is fragmented across several files (e.g. main form + annexes + bank details), first combine them with the iFillPDF merge tool (free, up to 20 files, client-side processing without server upload).

Then import the unified PDF into the compression tool if combined size exceeds 50 MB.