Compress your PDF and choose the compression level to get the best quality and file size ratio.
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PDF • Max 100MB
Compress PDF reduces a document's file size so it's easier to email, upload, or store — without making the text or images unreadable. Pick a compression level from light (barely noticeable quality loss, moderate size reduction) to strong (maximum size reduction for scanned or image-heavy files), and watch the estimated output size update instantly. It's especially useful for large scanned contracts, presentation exports, or design files that are too big for an inbox attachment limit. Compression happens locally in your browser, so nothing is uploaded, and you can compare file sizes before and after to pick the right balance for your needs.
Drop your PDF into the box — the file loads in your browser and stays there. Nothing gets uploaded.
Choose a compression level: light for near-identical quality, strong for scanned or image-heavy files that need maximum shrink.
Watch the estimated output size update instantly, and compare it against the original before you commit.
Download the compressed PDF. Text stays sharp and selectable — only the heavyweight image data gets trimmed.
Pick your quality-size balance with a live size preview, and your file never touches a server.
Choose light, medium, or strong compression depending on how small you need the file.
See the estimated file size before you download, so you know what you're getting.
Shrink large PDFs to fit under common attachment size caps in seconds.
Compression happens in your browser — your file is never processed in your browser.
Compress as many PDFs as you need, with no account or subscription.
It depends on the content — scanned or image-heavy PDFs often shrink the most, sometimes by 70% or more, while text-based PDFs compress less dramatically.
You choose the compression level, so you can balance smaller file size against visual quality — light compression keeps quality nearly identical.
Yes, it's completely free to use with no limits on how many files you can compress.
No. Compression runs entirely in your browser, so your PDF never leaves your device.
Smaller PDFs are easier to email, upload to forms with size limits, or store without using up storage space.
Reduce PDF file size while optimizing quality