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Reduce PDF file size with quality presets for easy sharing.
Drop your files here
or browse, or paste from clipboard
PDF files
Processed in your browser - never uploaded
Compress PDF shrinks the size of a PDF so it is easier to email, upload to a portal, or store - useful when a scanned document or an image-heavy report is too large to send. You pick a quality level and the tool rebuilds the file to be as small as it can while still looking good.
The compression runs completely in your browser: your PDF is never uploaded. To achieve real savings on scanned and image-heavy PDFs, the tool re-renders each page as an optimised image at your chosen quality. That means the strongest presets trade away selectable text for a much smaller file - and if compressing would not actually help, the tool simply returns the original untouched so you never end up with a bigger file.
Add your PDF
Drag your PDF into the drop zone or click to browse and select it.
Pick a quality level
Choose Maximum Quality, Balanced, or Maximum Compression depending on how small you need the file.
Compress
Click Compress PDF. Your browser rebuilds the document and shows how much smaller it became.
Download
Save the compressed PDF. The comparison tells you the exact size reduction achieved.
Compression happens on your device - your PDF is never uploaded to any server.
Trade quality for size with Maximum Quality, Balanced, or Maximum Compression - no guesswork.
If rebuilding would not shrink the file, the tool keeps your original, so the result is never bigger than the input.
You see the before and after size instantly, so you know exactly what you are downloading.
Most online PDF tools upload your document to a server to process it. This one does not. Every operation runs inside your own browser using WebAssembly, so your files are read, processed, and saved locally - they are never transmitted, stored, or seen by Sapphire Broking or anyone else. That makes it safe to use with financial statements, contracts, and identity documents.
No. The whole process runs in your browser with WebAssembly, so the document never leaves your device - safe for statements, contracts, and IDs.
The biggest savings come from re-rendering each page as an optimised image. That is what shrinks scanned and image-heavy PDFs the most, but it converts the page to a picture, so text is no longer selectable. Use Maximum Quality if you need to keep selectable text.
It depends on the file. Scanned or photo-heavy PDFs can shrink by 50-80%, while lean text-only PDFs may barely change. The tool shows the exact reduction for your file.
It never will. If the rebuilt version is not smaller, the tool returns your original file instead, so you always download the smallest available version.
Yes. There is no account, no watermark, and no limit - the compression is entirely free and runs on your own device.
Keep going
Combine multiple PDFs into one document in the order you choose.
Open toolSplit a PDF by page ranges or extract every page into separate files.
Open toolPull selected pages out of a PDF into a brand-new document.
Open toolRemove unwanted pages from a PDF and keep the rest intact.
Open tool