PDF viewer

Read any PDF straight in this tab: search the text, jump by thumbnails or outline, zoom, rotate and print, while the file itself stays on your device.

How to Open PDF

1
Add your PDF
Drop the file here or pick it from your disk. It is opened by your own browser, so nothing is sent anywhere and no upload progress bar appears.
2
Read, search and navigate
Scroll through the pages, search the whole document, jump by thumbnails or by the outline, change the zoom, rotate the view or switch to a darker reading theme.
3
Download or print it
Save the same file back to your disk, print the pages you need, or carry the document straight into the next tool without picking it again.

Why pages appear as you scroll

A five hundred page report holds far more pixels than a browser tab can keep alive at once. This viewer reserves the space for every page before drawing anything, so the scrollbar is accurate from the first second and never jumps under your thumb. Pages are drawn only as they come near the viewport, two at a time, and the one closest to the middle of the screen goes first. Once a page is well behind you, its canvas is released and only its reserved box remains, ready to be drawn again if you scroll back. That is why a huge document opens in about a second instead of freezing the tab, and why memory stays flat while you read rather than climbing until the page dies.

Searching, thumbnails and the outline

The first search reads the text of every page once and keeps it in memory, so the second search is instant. Matching ignores capital letters and accents, and it also understands the typographic ligatures that PDF files love, so searching for a word spelled with a plain f and i still finds it. The thumbnail column shows where you are and jumps anywhere in one click; the outline column mirrors the bookmarks the document author wrote, and it is unavailable when the file has none, rather than showing an empty box. Scanned documents have no text at all, only pictures of text, so search offers you optical recognition instead of returning nothing.

Your file stays on your device

The PDF is opened, drawn and searched inside this browser tab. It is never uploaded, never queued on any server, and no copy exists for anyone to delete later. Close the tab and the document is gone from memory. Contracts, bank statements and medical records can be read here without leaving the machine they are stored on.

Frequently asked questions

Is my PDF uploaded to a server?

No. The file is read by your own browser and stays in this tab. Nothing is transmitted, not even for analytics: the only thing recorded is that a document was opened and how many pages it had, never its name or contents.

How do I search inside the document?

Open the search panel or press Ctrl+F, type your words and press Enter. The counter shows which match you are on and how many there are; Enter moves forward and Shift+Enter moves back, jumping to the right page each time.

Why does search find nothing in my scan?

A scan is a picture of a page, so there are no words to match, only pixels that look like words. Running optical character recognition adds a real text layer, after which searching, selecting and copying all start working normally.

How do I print only some pages?

Start printing and enter a range such as 1-20 when asked. Very long documents always ask first, because rendering hundreds of pages at print resolution takes both time and a lot of memory, and a range avoids paying for pages you do not need.

Can I embed this viewer on my own site?

Yes. Copy the iframe snippet shown under the document and point its file parameter at your own PDF address. The embedded viewer reads that file in the visitor's browser, as it does here.

Does it open password-protected PDFs?

Yes, if you know the password. A field appears instead of the document and the file is opened again with what you type. If the password is wrong three times, the password-removal tool can take the protection off a file you own.

What is the largest file I can open?

Up to two gigabytes, though the practical limit is your device's memory. Large documents open just as fast as small ones because only the pages you are looking at are drawn; the rest wait as reserved space.

Can I keep working on the file afterwards?

Yes. The document you opened is offered to the next tool right away, so merging, compressing, splitting or converting it to Word starts with the file already in place instead of asking you to choose it again.