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Reduce PDF file size for faster sharing and easier uploads.
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Smaller Files
Reduce size while keeping quality.
Fast Processing
Compress quickly in your browser.
Easy Sharing
Send files with fewer size limits.
Upload your PDF and complete the task in minutes.
How does PDF compression work?
The compressor analyzes your PDF and reduces its file size by optimizing embedded images, removing redundant data, and applying efficient encoding to the content streams. The process runs in your browser, so no file is sent to a remote server. You upload your PDF, the tool processes it locally, and you download a smaller version. The result is a leaner file that is easier to email, upload, or share.
Is my PDF safe when I compress it?
Yes. Compression happens entirely in your browser — your file is never transmitted to any external server. We do not store or access your document at any point. Once you close the tab, the file is removed from memory. You can compress sensitive documents like contracts or financial reports with confidence.
Is there a file size limit for compression?
The tool works well with PDFs up to around 100 MB. Very large files may take longer to process depending on your device's available memory and CPU speed. If your file is over 100 MB, it may still work but could be slower on older devices. For the fastest results, try compressing files under 50 MB.
How much will compression reduce my file size?
The reduction depends heavily on what is inside your PDF. Files with many large images can often be reduced by 50–80%. Documents that are mostly text or already-compressed content may only shrink by 10–20%. The tool applies the best available optimizations automatically, so you always get the smallest possible output without manually adjusting settings.
Does compression affect the visual quality of my PDF?
The compressor aims to reduce file size while keeping the document looking good on screen and in print. Images may be slightly optimized, but the result is designed to remain clear and readable. For most use cases — sharing via email, uploading to a website, or storing digitally — the quality difference is not noticeable. If you need pixel-perfect image fidelity, keep a copy of the original.
Does the compression tool work on mobile and all browsers?
Yes. The tool runs in any modern browser including Chrome, Firefox, Safari, and Edge on desktop and mobile. No app or plugin is required. On mobile devices, the interface is fully usable, though processing large files may be slower due to limited device memory. For best results on mobile, use files under 30 MB.