Compress PDF
Reduce PDF file size by re-encoding pages as images. Choose a quality level or target a specific file size. All processing in your browser.
Drag & drop PDF files here, or
Supports multiple PDFs — select several at once
60%
(lower = smaller file)
(tool will adjust quality to match)
Compressing PDFs...
Compression Complete
How to compress a PDF
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Add your PDFs
Drop one or more PDFs into the box above, or click browse. Files stay on your device.
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Pick quality or target size
Move the quality slider, or switch to target-size mode and type the file size you need.
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Compress and download
Click Compress and download the smaller files, each labelled with its quality setting.
Compress PDF — FAQ
You
Will compression ruin my PDF quality?
PixelDocs
You control the tradeoff. Higher quality settings keep pages crisp with modest savings; lower settings shrink files dramatically. The output name records the quality used, so you can re-run at a higher setting if needed.
You
Which PDFs compress best?
PixelDocs
Image-heavy and scanned PDFs shrink the most, since pages are re-encoded as optimized images. Text-only PDFs are already tiny and may barely shrink — that is normal.
You
What is target-size mode?
PixelDocs
Instead of guessing a quality level, type the file size you need (for example 2 MB for an email attachment) and the tool tests quality levels automatically until the output lands near your target.
You
Are my files uploaded anywhere?
PixelDocs
No. Compression runs entirely in your browser, so your documents never leave your device — ideal for contracts, resumes, and other sensitive files.
