Compress PDF
Downsample and re-encode embedded images, then rebuild the file with maximum compression.
Drop a PDF here
or click to browse · up to 100 MB each · press U
Any PDF
Uploading file 1 of 1
Time left calculating…
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Speed measuring…
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Uploaded
Processing
How it works
- Upload the document.
- Choose a preset: Light (200 DPI), Balanced (150 DPI), Strong (100 DPI) or Extreme (72 DPI).
- Run the tool and compare the real before and after sizes.
- Download it, or try a stronger preset if it is still too big.
What goes in, what comes out
- Accepts
- Any PDF
- Produces
- A smaller PDF
- File limit
- 100 MB per file
- Your original
- Never modified — the result is a new file
- Retention
- Removed automatically after 2 hours
When people use it
- Getting a scanned document under an email attachment limit.
- Preparing a portfolio for upload to a form with a size cap.
- Reducing an image-heavy brochure for faster web download.
Questions about Compress PDF
What do the presets actually change?
They set the resolution that embedded images are downsampled to, measured in DPI. Text and vector graphics are never rasterised, so they stay sharp at every preset.
How much smaller will my file get?
It depends entirely on what is inside. Image-heavy scans often shrink dramatically; a text-only document may barely change, because its size was never in the images. The tool shows you the real before and after figures rather than a promise.
Which preset should I pick?
Start with Balanced at 150 DPI, which is fine for screen reading. Use Light if the document will be printed. Extreme at 72 DPI is for when size matters more than image detail.
