Compress PDF

Compress PDF

Shrink hefty PDFs without turning them to mush.

Drop an oversized PDF and get a lighter version that still looks sharp on screen and in print. Images are recompressed intelligently, embedded fonts are subset, and unused objects are stripped away.

Files auto-deleted within 1 hour · no signup for basic use

How it works

Four calm steps.

  1. 01

    Drop your file

    Drag the PDF you want to slim down onto the upload card, or click to pick it from your device. You can also paste a link to a file hosted online.

  2. 02

    Pick a compression level

    Screen (smallest, ideal for email), Web (balanced), or Print (highest quality). We show the estimated size before you commit.

  3. 03

    Let us do the work

    Our engine rebuilds the PDF with recompressed images and slimmed metadata in a few seconds. Nothing leaves the encrypted pipeline while it runs.

  4. 04

    Download the result

    Save the smaller PDF to your device, share a temporary link, or send it straight to Google Drive or Dropbox. Files are wiped from our servers within one hour.

Why Compress PDF

Built to be the last compress pdf tool you try.

Quality that holds up

Text stays crisp because we only recompress raster images and downsample above the level you asked for.

Big wins on scans

Scanned reports and image-heavy decks routinely drop 60–90 % in size with no visible loss.

Private by default

Uploads travel over TLS, files are encrypted at rest, and every trace is deleted within 60 minutes. We do not read, index, or train on your documents.

Fast on any device

The heavy lifting happens on our servers, so a Chromebook, an old laptop, or a phone all finish the job in about the same time.

FAQ

Questions people ask.

Why is my file still large after compression?

If it is mostly vector text, it is already small. Compression pays off on documents packed with photos, screenshots or scans.

Will the compressed PDF still print well?

Yes on Web and Print levels. Screen level is tuned for reading on displays and email attachments.

Is PDF Books Lib really free?

Yes. The free tier covers everyday use – you can compress several files per hour without an account. Pro unlocks larger uploads and batch jobs.

What happens to my files?

They live in an encrypted staging area for at most one hour, then they are permanently deleted. Nobody on our team can browse them.

Do I need to install anything?

No. Everything runs in your browser against our servers – Windows, macOS, Linux, iOS and Android are all supported.

Is Big wins on scans free to use?

Yes. Big wins on scans is free on the no-signup tier with no watermark added to your files. A paid plan only lifts batch and file-size limits for heavy users.

Do I need to install software or create an account for Big wins on scans?

No. Big wins on scans runs entirely in your browser - there is nothing to download and no account is required to get started.

Are my files private when I use Big wins on scans?

Yes. Uploads travel over an encrypted connection, are processed in an isolated pipeline, and are permanently deleted from our servers within 60 minutes. We never read, index or train on your documents.

What is the largest file Big wins on scans can handle?

On the free tier Big wins on scans accepts files up to 100 MB. Larger documents are supported on the paid plan, or you can split a big file first.

Does Big wins on scans work on mobile and every browser?

Yes - Big wins on scans is fully responsive and works in Chrome, Safari, Edge and Firefox across Windows, macOS, Linux, iOS and Android.

Will Big wins on scans change the rest of my document?

No. Big wins on scans only applies the change you make and leaves the rest of the pages, fonts and layout exactly as they were.