Compress PDF to 350KB
Not every cap is a round number — 350KB fields exist, and guessing compression levels to hit them wastes attempts. Set the target, land under it, see the true size. We compress toward your target at the best quality that fits, never make the file larger than the original, and always show the real final size — very image-heavy files may land slightly above tight targets.
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Drag & drop your file here
or click to browse · Up to 15 MB
Select fileAccepted: PDF
Your files are processed temporarily and deleted automatically — there is no general cloud storage. File deletion.
How to compress pdf
Simple steps — no software to install.
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Upload the PDF
Whatever the odd-cap field demands.
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Enter 350KB
Any target number works the same way.
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Verify the landing
True size shown, cap cleared.
Why use our Compress PDF
Secure & private
Files are encrypted in transit and deleted automatically after processing.
Fast results
Optimized processing returns your file in seconds.
Free to start
Core tools are free with daily limits — no install required.
Works anywhere
Runs in your browser on any device, anywhere in the world.
Odd caps, precise landings
Legacy systems and custom portals cap at values like 350KB for their own historical reasons. Target-based compression treats any number the same: the best quality that fits under it, first try.
What 350KB carries
A dozen scanned pages at solid quality, or illustrated documents with meaningful image content — between the 300KB and 400KB tiers, with the budget spent on fidelity.
- Any-number targeting
- First-try cap clearing
- True final size shown
- Never larger than input
- Free with fair daily limits