PDF Viewer

PDF Viewer

Open and read any PDF in a clean, ad-free viewer.

Open a PDF in your browser without downloading anything or bouncing to a heavy app. Continuous scroll, thumbnail sidebar, keyboard shortcuts, search and dark mode – the basics done right.

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 read 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

    Navigate

    Scroll, use the thumbnail sidebar, or jump to a page number. Ctrl+F searches inside the document.

  3. 03

    Adjust for comfort

    Toggle dark mode, single-page or two-up view, and rotate temporarily without editing the file.

  4. 04

    Move on

    Download the file if you'd like, or drop a different one. Nothing is uploaded permanently.

Why PDF Viewer

Built to be the last pdf viewer tool you try.

Ad-free

No overlays, no upsells, no 'download our extension' banners.

Handles big files

Streams pages on demand so a 500-page book opens in a second.

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.

No signup required

The free tier handles most day-to-day work. You only create an account if you want history, larger files, or batch automation.

FAQ

Questions people ask.

Does anything get uploaded?

Only what's needed to render – the file is deleted from our servers within the hour.

Can I annotate here?

For annotations, use the Edit PDF tool. This is a read-only viewer.

Is PDF Books Lib really free?

Yes. The free tier covers everyday use – you can view 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 Handles big files free to use?

Yes. Handles big files 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 Handles big files?

No. Handles big files 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 Handles big files?

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 Handles big files can handle?

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

Does Handles big files work on mobile and every browser?

Yes - Handles big files is fully responsive and works in Chrome, Safari, Edge and Firefox across Windows, macOS, Linux, iOS and Android.

Do I need any special software for Handles big files?

No. Handles big files opens your file straight in the browser - no reader, plugin or install required.