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Compress PDF

Shrink PDFs with quality presets. Image-heavy files compress most.

  1. 1Upload
  2. 2Options
  3. 3Process
  4. 4Preview

Upload PDF files

Drag and drop files here, or click to browse

PDF · up to 100.0 MB per file · single file

Shrinks photos and scans inside your PDF. Large files may take a minute.

About Compress PDF

Reduce PDF file size for email and sharing. Choose a quality preset — image-heavy scans compress the most. Preview before download to confirm readability. OyoPdf Compress PDF runs locally in your browser for privacy.

Large PDFs slow down email delivery and fill storage quickly. Compression reduces embedded image resolution and removes redundant PDF structure while keeping text crisp. Use high quality when readability matters; use strong compression for archival scans where file size is the priority.

Prefer a walkthrough? Read How to Compress a PDF for Email (Under 5 MB).

How to compress pdf

  1. Upload your PDF to the Compress PDF tool.
  2. Pick a quality preset (high, medium, or strong compression).
  3. Process the file, preview the result, and download the smaller PDF.

Frequently asked questions

Is Compress PDF free on OyoPdf?
Yes. Compress PDF is free with no account required for standard use.
Will compressing a PDF reduce text quality?
Text stays sharp. Compression mainly affects embedded images and redundant PDF structure.
What if my PDF is already compressed?
OyoPdf detects when further compression would not help and shows the original file size so you do not get a blank or worse result.
What is the maximum file size?
Browser-local tools support PDFs up to 100 MB. Server conversions (Word/Excel/PowerPoint, Compress, Repair) support up to 20 MB per file.
Is Compress PDF free?
Yes. Compress PDF on OyoPdf is free for everyday use with no account required.
Are my files private?
OyoPdf is privacy-first. Processing runs in your browser whenever possible so files stay on your device.

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