Compress PDF
Re-saves the PDF with optimized internal structure (object streams, compressed cross-reference tables). This is a structural compression, not image recompression — PDFs whose size comes mostly from embedded images will see limited savings.
By The Paper Room Editorial Team — PDF Tools
Frequently asked questions
How does browser-based PDF compression work?▼
The tool re-encodes embedded images at a lower quality setting and removes unused objects from the PDF structure. Text and vector content remain untouched. All processing happens locally in your browser.
Will compressing a PDF make it look worse?▼
Text and vector graphics are unaffected. Embedded images may show slight quality reduction depending on the compression level you choose. For most business documents, the difference is imperceptible.
What kind of size reduction can I expect?▼
Results vary by content. Image-heavy PDFs (scanned documents, photo reports) often shrink 50-80%. Text-heavy PDFs with few images may only shrink 10-20%, since text is already compact.