PDF Changer

Flatten to Image PDF — Troubleshooting

Troubleshooting and recovery steps for Flatten to Image PDF.

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Flatten to Image PDF troubleshooting

Common issues

  • Blank output: the source PDF may use features PDF.js cannot render (rare 3D content, uncommon fonts). Try a lower DPI first.
  • Processing stalls at page N: browser is out of memory. Split the document before page N and flatten each half separately.
  • Output too large: switch from PNG to JPEG, or reduce DPI from 200 to 150. JPEG at 85% quality is 2-4x smaller than PNG with minimal visual difference.
  • Colors look wrong: some CMYK-heavy PDFs render differently in PDF.js (which works in RGB). The content is correct but colors may shift slightly.

Recovery steps

  1. Retry with a smaller sample file.
  2. Refresh and run the tool again.
  3. Use an alternative workflow from /tools if needed.
  4. Check /status for current incidents.

What this does not protect

  • Troubleshooting guidance does not guarantee recovery for damaged files.
  • It does not bypass document owner restrictions when cryptography is enforced.