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Convert files to Scanned PDF

To Scanned PDF
How to use
Turn files into a scanned Pdf: every page is rasterized into an image and repackaged as a Pdf, so the text can no longer be selected, copied or edited.
After uploading Word / Excel / PPT / images / Pdf, choose “Quality”; to unify the paper size, set the size and margins under “Unified output” and then click “Start processing”.
This operation is irreversible: restoring editability usually requires running OCR again, and the file size normally grows noticeably.