PDF Compressor
Reduce the file size of your PDF documents while maintaining quality. Perfect for email attachments and web uploads.
Key Capabilities
Three compression levels, each with a real number behind it
Low cuts roughly 20% and keeps images at 144 DPI (still screen-sharp); Medium cuts 40-60% at 96 DPI (fine for email); High cuts 60-80% at 72 DPI (web-only quality).
Only touches embedded raster images
Vector text and line art are never recompressed, so the document stays sharp regardless of which level you pick.
One-click compression
Pick a level and the file compresses in your browser — no upload, no waiting on a server queue.
How to Use
Upload your PDF
Works best on image-heavy files.
Choose a compression level
Low, medium, or high.
Download
Text and vector graphics stay sharp at every level.
Common Use Cases
- Shrinking a report for emailGetting a 15MB scanned report under a 5MB email attachment limit.
- Meeting a portal's upload capCompressing an image-heavy product catalogue to fit a 10MB upload limit.
Frequently Asked Questions
Will compressing the PDF make it blurry?
Our compression engine targets the embedded images within the PDF, which cause most file bloat. Vector graphics and text remain perfectly sharp. Images will be optimized for web transmission, meaning they compress significantly but remain completely legible.
Who uses the PDF compressor?
Administrative assistants shrink large reports to bypass email attachment limits (usually 25MB). Web developers compress marketing PDFs to improve website loading speeds. Paralegals shrink evidentiary documents to meet court e-filing file size caps.
How much smaller will my PDF get?
The compression ratio depends on the original file. Image-heavy PDFs or scanned documents can often be reduced by 40–70%. Text-heavy PDFs that are already optimized may only see a 10–20% reduction.
Are my confidential PDFs safe?
Yes. The data compression runs entirely inside your browser via WebAssembly. Your corporate financial sheets, NDAs, and proprietary blueprints are never uploaded to any external server.
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