How much smaller will my PDF get?

It depends almost entirely on images. Scanned or photo-heavy documents often drop 50–80%. A PDF that is mostly text is already efficient and may barely shrink.

Will the text become blurry?

No. Text is stored as vector glyphs and is not re-encoded, so it stays perfectly sharp. Only raster images are recompressed.

My PDF barely shrank — why?

It is probably already optimised, or it is pure text with nothing left to squeeze. Compression works by re-encoding embedded images, so a document without them has little to give.

Are my files uploaded to a server?

No. Every conversion runs inside your own browser using JavaScript and WebAssembly. Your files never leave your device, which means there is nothing for us to store, read, or leak.

Compress PDF Files

How do you reduce the file size of a PDF?

Reduce PDF size by re-encoding the images embedded in it, which is where nearly all the weight sits. Scanned or photo-heavy documents commonly drop 50–80%, while a text-only PDF is already efficient and may barely shrink. Text is stored as vector glyphs, so it stays perfectly sharp either way.

Last updated 2026-07-30

Reduce PDF size so it fits under email attachment limits and portal upload caps. Text stays selectable and sharp; the savings come mostly from re-encoding embedded images.

How to use Compress PDF Files

Upload your PDF — Drag the file in and wait for the page count and current size to appear.
Pick a compression level — Medium suits most documents. Use high compression for image-heavy scans where some softening is acceptable.
Download the smaller file — Compare the before and after sizes, then save the result.

Frequently asked questions

How much smaller will my PDF get?: It depends almost entirely on images. Scanned or photo-heavy documents often drop 50–80%. A PDF that is mostly text is already efficient and may barely shrink.
Will the text become blurry?: No. Text is stored as vector glyphs and is not re-encoded, so it stays perfectly sharp. Only raster images are recompressed.
My PDF barely shrank — why?: It is probably already optimised, or it is pure text with nothing left to squeeze. Compression works by re-encoding embedded images, so a document without them has little to give.
Are my files uploaded to a server?: No. Every conversion runs inside your own browser using JavaScript and WebAssembly. Your files never leave your device, which means there is nothing for us to store, read, or leak.

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