PDF too large to email or upload? Compress it here without losing quality ā works entirely in your browser.
š
Drop your PDF here
or click to upload ā PDF only
Target size (optional)
or leave blank to compress as much as possible
š” Good to know
āPDF compression works by re-encoding embedded images at lower quality and removing unused metadata and objects.pdf-lib ā
āA scanned PDF is almost always larger than a text-only PDF because each page is stored as a high-resolution image.
āCompressing a PDF does not change its page count, layout, or text content ā only image quality may be reduced.
āMost email providers (Gmail, Outlook, Yahoo) cap attachments at 20ā25MB. Portals and forms often cap at 1ā5MB.
ā 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.
Is my PDF uploaded to a server?+
No. This tool runs entirely in your browser. Your file never leaves your device.
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.
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.