Compress PDF Online
Reduce your PDF file size instantly in your browser. No uploads, no sign-up, 100% private.
Drag & Drop Your PDF Here
or
Supported: PDF files up to 50MB
How to Compress a PDF
- Click "Select PDF File" or drag and drop your PDF into the workspace above.
- Choose your compression level — Recommended works best for most files.
- Click "Compress PDF" and wait a moment while it processes.
- Download your smaller PDF file instantly.
Compression Levels Explained
Smallest file size. Best for emailing, sharing online, or uploading to web. Image quality is reduced but readable.
Great balance of size and quality. Ideal for most everyday uses — forms, reports, presentations.
Minimal size reduction but preserves near-print quality. Good for documents that will be printed.
Frequently Asked Questions
Is my PDF file secure?
Yes. Your file is processed entirely in your browser using JavaScript. It is never uploaded to any server, making it completely private and secure.
How much can I reduce a PDF file size?
Typical reductions range from 20% to 70% depending on how the original PDF was created. PDFs with many high-resolution images see the most significant reductions.
Will compression affect my PDF quality?
For the Recommended level, text and vector graphics remain sharp. Image quality may be slightly reduced but remains readable and professional for most uses.
What is the maximum file size supported?
This tool supports PDF files up to 50MB. For very large files, we recommend splitting the PDF first using our PDF tools.