Reduce PDF file size without losing quality — perfect for email, web upload or storage.
or drag and drop your PDF here
No software to install. Works on every device.
Select a PDF file from your device, Google Drive, Dropbox, or paste a URL. Any size works.
Select Standard, Recommended or Maximum compression depending on your file size and quality needs.
Your compressed PDF is ready in seconds. We do not store files on our servers. Files are processed immediately and deleted.
Trusted by individuals, students and enterprises in 180+ countries.
Our smart compression engine can reduce PDF size by up to 90% while preserving text, fonts and image quality.
All file transfers use SSL/TLS encryption. We never read, sell or share your documents.
We do not store files on our servers. Files are processed immediately and deleted.
Browser-based and 100% cross-platform — Windows, Mac, Linux, iOS and Android all work perfectly.
Choose Standard, Recommended or Maximum compression to balance file size and document quality.
Compress PDFs at scale via our REST API. Simple integration, comprehensive docs and sandbox.
Balance file size and visual quality with practical compression guidance.
Scanned documents and slide decks see the biggest reductions because images — not text — dominate their file size.
Use medium for everyday sharing; switch to maximum only when strict attachment limits make smaller size essential.
A pure-text PDF offers little room for reduction — the bulk of saving comes from downsampling embedded images.
Scanning documents at 150-200 DPI instead of 300+ DPI cuts the source file size before compression even runs.
Maximum compression reduces image resolution; check output quality before sending to print or archiving.
Compress a fresh copy; never re-compress an already-compressed PDF repeatedly as each pass degrades image quality further.
Subset-embedding (only the characters actually used) can cut font overhead by up to 90% compared to full embedding.
Merge all component files first and then run a single compression pass — this gives the engine the most context to optimise.
Quick answers to common questions about this tool.
Upload once and instantly jump between convert, merge, split, compress, watermark, encrypt, and extract workflows. Faster docs, less friction.
No account needed. No software to install. Just upload, compress and download — completely free.
