Compress PDF Online
Reduce the size of a heavy PDF so it fits an email attachment limit or an upload form, while keeping the document readable.
Drop your file here
or click to browse your device
Common upload limits
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How to compress pdf
- 1Add the PDF you want to shrink.
- 2Pick light, balanced or strong compression.
- 3Start the compression.
- 4Check the new size and download the smaller PDF.
Why use Secure PDF Tasks?
- Free to use, with no account and no watermark on your files.
- Processing runs in your browser, so the file is not uploaded to a server.
- A single, simple screen for each task.
- Works on desktop and mobile browsers.
Supported file formats
PDF in, a smaller PDF out.
File picker accepts: .pdf
Frequently asked questions
How much smaller will my PDF get?
It depends on the file. Image-heavy documents shrink most; text-only PDFs are already compact.
Does compression reduce quality?
Stronger levels reduce image detail. Choose light compression when print quality matters.
Why did my file barely change?
PDFs that are mostly text contain little redundant data left to remove.
Is there a file size limit?
No set limit, but very large files are limited by your device's memory.
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