Optimize and repair PDFs
This group fixes what is wrong with a file rather than how its pages are arranged. Compress brings a document down to a size you can actually attach to an email. Repair rebuilds the internal structure of a file that a viewer refuses to open, which often recovers documents that seemed lost. OCR reads the text inside a scan and layers it back over the image, so the result can be searched and copied. PDF/A converts to the archival profile that institutions and courts require for long-term storage.
Tools in this category
Frequently asked questions
How much smaller will my file get?
It depends almost entirely on what is inside. Scans and photo-heavy documents often drop dramatically because the images are re-encoded; a text-only report is already efficient and will barely change.
Does compression make the document look worse?
Text and vector graphics stay sharp because they are not raster data. Images are re-encoded, so a heavily compressed scan can show artefacts — check the result before discarding the original.
What can OCR not do?
It reads printed text reliably, but handwriting, very low-resolution scans and heavily skewed pages give poor results. The page image is kept underneath, so nothing is lost if recognition is imperfect.
When do I actually need PDF/A?
When a document has to stay readable for years without depending on external fonts or resources — archives, legal filings and public-sector submissions commonly require it.