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Compress PDF
Reduce PDF file size by rebuilding pages as optimized images. Shows real before/after sizes.
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How it works
OpenToola renders each page to a canvas at a chosen DPI and quality, then rebuilds the PDF. Text may no longer be selectable.
Steps
- Upload a PDF.
- Adjust DPI and quality.
- Click Compress.
- Compare sizes and download.
Frequently asked questions
Why is text no longer selectable?
Pages are rebuilt as images. Use for scanned/image-heavy PDFs.
What if size increases?
OpenToola will warn you; compression is not always effective.
Processed locally — your files never leave your browser.