Free PDF tools

View a PDF online

Open a PDF right here to scroll through it and zoom in. When you want to mark it up, open it in Survey with one tap.

or drop it here

Your files stay on this device

How to view a PDF online

  1. Choose a PDF, or drop it on the page.
  2. Scroll through the pages. Use + and - or Fit width to zoom.
  3. Press Open in Survey to add notes, shapes and markups.

Look over a drawing set on any device

Open a full drawing set or a shop drawing on a phone, tablet or site laptop without installing anything. Zoom in on a detail, then open the set in Survey to mark it up with clouds, counts and notes.

Private

Your files stay on your device. Nothing is uploaded.

Free

No sign-up, no watermark on your file, no daily limit.

Works offline

Once the page loads, it keeps working without the internet.

Any device

Phone, tablet or computer, in Chrome, Edge or Safari.

Questions

Can it open big drawing sets?

Yes. Only the pages you are looking at are drawn, so a set of large sheets scrolls smoothly. Very big files depend on how much memory your device has.

How do I zoom?

Use the + and - buttons, Fit width or Actual size. On a computer you can also hold Ctrl (or Cmd) and scroll, or pinch on a trackpad.

Can I add notes or markups?

Press Open in Survey. The PDF opens in the Survey app on this site, where you can add pens, shapes, clouds, text and counts for free.

Are my files uploaded?

No. The tool runs in your browser, so your files never leave your device. Nothing is sent to us or kept after you close the tab.

Is it free?

Yes. There is no sign-up, no watermark on your file and no daily limit.

Is there a file size limit?

Only what your device can hold in memory. Most phones handle files of a few hundred MB; a computer handles more.

Need to mark up the PDF too?

Survey is a full PDF app for drawings. Add pens, shapes, clouds and count markers, and keep every sheet in sync on your computer, iPad and phone.

Open Survey free