Compress PDF Online for Free
Reduce the file size of any PDF document in seconds. ToolMint offers three compression levels — choose between maximum quality, balanced, or smallest file size. Compression runs server-side with a native PDF engine, delivering up to 90 % file-size reduction without destroying readability.
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Drop your PDFs here or browse
Upload one or multiple .pdf files for native server-side compression
How to Compress a PDF Online
1
Upload your PDF
Drag & drop or click to select a PDF file from your device.
2
Choose compression
Pick Low, Medium, or High compression depending on your needs.
3
Compress
Hit Compress and let the server-side engine optimize your file.
4
Download
Save your smaller PDF instantly. The original is never stored.
Frequently Asked Questions
- How much can ToolMint reduce my PDF file size?
- Depending on the content, ToolMint can reduce PDF size by 30–90%. Image-heavy PDFs see the largest reductions, while text-only files are already compact.
- Is my PDF file secure during compression?
- Yes. Your file is processed on the server and automatically deleted after compression. We never store, share, or access your documents.
- What compression levels are available?
- ToolMint offers three levels: Low (best quality, moderate reduction), Medium (balanced), and High (smallest size, slight quality trade-off for images).
- Can I compress password-protected PDFs?
- Password-protected PDFs must be unlocked first. Use our Unlock PDF tool to remove the password, then compress the file.
- Is there a file size limit for PDF compression?
- There is no hard limit, but very large files over 100 MB may take longer to process. Files under 50 MB compress fastest.