Compress PDF

PDF too large to email or upload? Compress it here without losing quality — works entirely in your browser.

🔒 Files never leave your device⚡ Instant processing in browser💸 100% free — no signup

📄

Drop your PDF here to fix upload errors

or click to select file — PDF only

Target size (optional)

or leave blank to compress as much as possible

⚡ File Size Limits (Quick Fix)

•Most email providers (Gmail, Outlook, Yahoo) cap attachments at 20–25MB. Portals and forms often cap at 1–5MB.

👉 Fix: Compress your file below the required limit using the tool above.

About this tool

Reduces PDF size by compressing embedded images and removing redundant data. No file is sent to any server.

How to use this tool

Select or drag and drop your file into the tool above.
Adjust the settings or target size as needed for your specific requirement.
Wait a moment while your file is processed directly in your browser.
Download the final file safely to your device.

💡 Good to know

→PDF compression works by re-encoding embedded images at lower quality and removing unused metadata and objects.pdf-lib ↗
→A scanned PDF is almost always larger than a text-only PDF because each page is stored as a high-resolution image.
→Compressing a PDF does not change its page count, layout, or text content — only image quality may be reduced.
→Most email providers (Gmail, Outlook, Yahoo) cap attachments at 20–25MB. Portals and forms often cap at 1–5MB.

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Compress PDF to 1MB

Reduce your PDF to under 1MB — the most common upload and email limit.

❓ Frequently Asked Questions

Does compressing a PDF reduce quality?+

Only if the PDF contains images. Text, fonts, and layout are not affected. Image quality may be slightly reduced depending on how much compression is applied.Source: pdf-lib ↗

Is my PDF uploaded to a server?+

No. This tool runs entirely in your browser. Your file never leaves your device.Source: pdf-lib ↗

Why is my PDF still large after compression?+

If your PDF contains no images (text-only), there is limited room to compress. The tool will still remove metadata and unused objects, but the reduction will be small.Source: pdf-lib ↗

What is the maximum PDF size I can compress?+

There is no hard limit, but very large files (100MB+) may be slow to process depending on your device's memory and CPU.Source: pdf-lib ↗

🔒 Files stay on device·🆓 Free forever·📵 No signup required

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