| Problem | Solution | | :--- | :--- | | "Scanner not found" | Ensure your scanner’s TWAIN driver is installed. Restart the PM715 service. Go to File > Select Source and pick your device manually. | | OCR creates gibberish text | Increase scan resolution to 300 DPI. Clean your scanner glass. Ensure the document language matches the OCR setting (e.g., English US vs. French). | | PDF file is huge (50MB+) | You scanned in "Color" at high DPI. Re-scan using "Black & White" or use PM715's "Compress PDF" tool under Save As > Options . | | Crashes on Windows 11 | Run PM715 in compatibility mode: Right-click icon > Properties > Compatibility > Run as Windows 7. |