ENPTES

Compress PDF and reduce its file size without uploading it

Choose a level, press Compress and compare the before/after size. Best results on PDFs with photos or scans.

Runs in your browser Free No sign-up
  1. Choose file
  2. Set options
  3. Get result

Your file never leaves your device. Processed locally in your browser. Nothing is uploaded.

How the compression works (honestly)

Balanced mode finds the photos inside the PDF, scales them down to about 150 dpi and re-saves them as JPEG. Text, vector drawings and fonts are not touched, so they stay crisp and selectable.

Strong mode re-renders every page as an image at screen resolution. It shrinks scanned documents a lot, but the text is no longer selectable. Use it only for scans or when you need the smallest file.

PDFs that contain mostly text are usually already small; if GustKit cannot make your file smaller, it tells you and keeps the original.

When to use it

Email attachments limited to 10–25 MB, job portals and government sites that reject large uploads, or phone scans that came out at 20 MB for three pages.

Frequently asked questions

Will the quality drop?

Only images are affected in Balanced mode, and they are kept at a resolution that looks sharp on screen and in normal printing. Strong mode trades quality for size.

Why didn't my PDF get smaller?

If the PDF has no large images (for example, a text export from Word) there is little to remove. Desktop tools that rewrite fonts can sometimes go further.

Is it safe for confidential documents?

Yes, the PDF is processed in this browser tab and never uploaded.