What is a PDF compressor?
A PDF compressor reduces a PDF file size so it is easier to email, upload, archive, or share.
Free Tool
PDF Compressor Online
A PDF compressor reduces file size so a document is easier to email, upload, store, or share without changing the original file on your computer.
Add a PDF, choose a compression preset, preview the estimated savings, and download a smaller browser-generated PDF with no signup or upload.
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Add one PDF
File
0
Pages
0
Original
0 KB
Compress
Quality preset
No PDF added yet
Add a PDF, pick a compression level, then compare the before and after file size.
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FAQ
PDF compression questions
Are my PDFs uploaded to Code Card?
No. This PDF compressor runs in your browser, so your file is opened locally and is not uploaded to Code Card.
Why does compression flatten text?
The strongest compression mode renders each page as an image, which can shrink scanned or image-heavy PDFs but removes selectable text and form fields.
Why did my PDF not get smaller?
Some PDFs are already optimized. If the compressed file is larger, use a smaller preset or keep the original file.
Is this PDF compressor free?
Yes. You can reduce PDF size for free in the browser with no signup and no watermark.