Compress PDF Online
Optimize PDF streams without changing page content. Reduce document overhead privately in your browser; already optimized files may not shrink.
Your input is processed in your browser. How local processing works
How to use Compress PDF
Choose input
Choose your document from your device.
Review settings
Choose a PDF and run lossless compression.
Save results
Review the result and download a new copy.
Tips for Compress PDF
Compression preserves text and images; savings depend on the source.
A large unoptimized report can use compressed object streams.
What to expect from Compress PDF
Process documents on your device
Download PDFs or page images
Review results before sharing
When to use Compress PDF
Optimize PDF streams without changing page content. Reduce document overhead privately in your browser; already optimized files may not shrink.
Compress PDF: frequently asked questions
What to know before you go.
Can I process large files?
Files follow the browser memory limit: 50MiB on smaller devices and 200MiB on desktop. Page rendering and extraction support up to 200 pages at a time.
How do I use Compress PDF?
Choose a PDF and run lossless compression.
What should I check in the result?
Compression preserves text and images; savings depend on the source.
Are my files uploaded?
No. Files and passwords are processed in this browser. Processing assets download from this site.
Tools to use with Compress PDF
Merge PDF
Merge PDF files online into one ordered document.
PDFReorder PDF Pages
Reorder PDF pages online to repair a scan or move a cover.
PDFPDF to Image
Convert PDF pages to PNG, JPG or WebP images online.
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