Compress PDF. Keep quality.
Reduce file size by up to 90% without visible quality loss. Free, no login, no watermark.
Drop your PDF here
or browse files · up to 10 files · max 50 MB each
Why your PDF is so large
High-resolution images
A single photo scanned at 300 DPI can add 5-10 MB. Most PDFs are large because embedded images are stored at full resolution even when the document only displays them at a fraction of that size.
Embedded fonts
When a PDF embeds an entire font family instead of just the characters used, file size bloats. A single embedded font can add 200-500 KB. Design-heavy documents with multiple fonts are especially affected.
Hidden metadata and layers
PDFs exported from InDesign, Illustrator, or PowerPoint often carry invisible layers, edit histories, and metadata that serve no purpose once the file is finalized. Compression strips these without affecting what you see on screen.
Common upload size limits you need to meet
Choosing the right compression level
10-20% reduction · Lossless
Strips metadata and rebuilds internal structure without touching image quality. Best for text-heavy contracts, legal documents, or files that are already reasonably sized. Fastest processing.
40-70% reduction · Recommended
Resamples images to screen-friendly resolution (150 DPI) and strips unnecessary data. No visible quality difference in normal viewing. Ideal for email attachments, WhatsApp sharing, and Google Drive uploads.
70-90% reduction · Aggressive
Reduces images to 72 DPI and converts colour profiles. Text remains sharp but photos will look softer when zoomed in. Use for government portal uploads (500 KB caps) or archiving scanned documents.
When you should NOT compress a PDF
Avoid compression if the file is a print-ready design (compressing reduces DPI below print thresholds), a digitally signed document (compression breaks the signature hash), or a CAD/engineering drawing where precise vector detail matters at high zoom. For these, use the Low setting or skip compression entirely.
Your files stay private
Files are uploaded to a private processing server over HTTPS, compressed, and permanently deleted immediately after the compressed version is returned to your browser. No file is ever stored, logged, indexed, or used for training. The server does not retain copies — once your download completes, the file no longer exists anywhere except on your device.
Other PDF tools you might need
Files are processed on a private server and permanently deleted immediately after compression. No file is stored, logged, or used for any purpose. Free forever — no account required.