Compress PDF
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Fast & Secure Compress PDF
Use Docsly to reduce file size while optimizing for maximal quality. No registration needed. Completely free.
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Frequently Asked Questions — Compress PDF
How much can Docsly reduce my PDF file size?
Docsly typically reduces PDF file sizes by 40–70 %. The exact ratio depends on the content — image-heavy documents with high-resolution photos see the greatest gains, while text-only PDFs are already compact and may see modest reductions of 10–20 %.
Does compressing a PDF reduce its quality?
Docsly uses smart compression: text, fonts, and vector graphics remain completely untouched. Embedded raster images are optimised with minimal perceptual loss using modern resampling algorithms. The result is virtually indistinguishable from the original for everyday use.
Is there a file size limit for PDF compression?
Each file can be up to 50 MB, and you can compress up to 10 PDFs at a time. There are no daily limits and no account is required — the tool is completely free.
Are my files safe when I compress them with Docsly?
Yes. All processing happens in-memory on our servers and files are immediately discarded after the compressed version is returned. We never store, log, or share your documents. Your privacy is our top priority.
Can I compress a password-protected PDF?
To compress a password-protected PDF, you need to remove the password first using our Unlock PDF tool, then compress the unlocked file. This ensures the encryption layer doesn't interfere with the optimisation process.