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Frequently asked questions
Is my PDF safe when compressing?
Yes completely. Your PDF is processed entirely in your browser. The file never leaves your device and is never uploaded to any server.
How much will my PDF be compressed?
Results vary depending on the PDF content. Text-heavy PDFs typically see 10-40% size reduction. Image-heavy PDFs may see less reduction since images are already compressed.
Will compression affect PDF quality?
Our browser-based compression removes redundant data and optimizes the PDF structure without affecting visual quality. Text and images remain crisp.
Why is my PDF not getting smaller?
If your PDF is already well optimized or contains mainly images, there may be little room for further compression. In this case the tool will tell you the PDF is already optimized.
Is there a file size limit?
Since processing happens in your browser, very large PDFs may be slow. Files under 50MB work best.