Protect and optimize

Set a password, remove one, shrink a file down, or fix one that won’t open — all without the file ever leaving your device.

• Protect PDFAdd a password so only people who know it can open the PDF.
• Unlock PDFRemove the password from a PDF you’re allowed to open.
• Compress PDFMake a PDF smaller, mostly by shrinking the images inside it.
• Repair PDFTry to rebuild a damaged PDF so it opens again.
• Flatten PDFTurn fillable fields into ordinary content so they can’t be changed.
• Remove PDF metadataStrip the author, dates and editing history hidden in a PDF.
• Remove PDF annotationsDelete comments, highlights, stamps and drawings from a PDF.
• Convert PDF to PDF/APracticePrepare a PDF for long-term archiving: PDF/A-2b profile and metadata, added on your device.
• Compare PDFPracticeSee what changed between two versions of a document.
• Batch PDFPracticeRun the same job over many PDFs at once, without doing them one by one.