Open a PDF without Adobe Reader on any phone or computer

You don't need Adobe Reader just to read a PDF

Every current web browser on a computer, and nearly every phone, can open a PDF without Adobe Acrobat Reader. Chrome, Edge, Firefox and Safari all have a PDF reader built in, so a PDF you click on a website or in your email usually opens right in the browser. Windows comes with Microsoft Edge, a Mac comes with Preview, and an iPhone shows PDFs in the Files app and in Safari. Firefox's built-in reader is in fact pdf.js, the same free, open-source reader our own viewer uses to draw pages.

To be fair to Adobe: Acrobat Reader is free, it is a good program, and for a few jobs it is still the best choice (see what to use for each job). But it is one more program to install and keep updated, and on a phone, an office computer or a cyber café computer you often can't install anything, or would rather not.

How to open a PDF on Android, iPhone, Windows and Mac

On an Android phone

1. Go to the place the PDF is: your Downloads or Files app, a WhatsApp chat, or an email.
2. Tap the PDF. In a chat or an email, you may need to tap once to download it and again to open it.
3. If the phone asks which app to use, pick one that reads PDFs. It may offer to use that app every time.
4. If the phone says no app can open it, or sends you to an app store, you don't have to install anything. Open our PDF viewer in Chrome or Samsung Internet, tap Open a PDF and pick the file, for example from Downloads.

On an iPhone or iPad

1. Open the Files app, find the PDF (often in Downloads) and tap it. It opens in a preview where you can scroll, pinch to zoom and share.
2. A PDF link in Safari opens in the page. To keep the file, use the Share button and choose Save to Files.
3. For a PDF in Mail or Messages, tap the attachment.

On a Windows computer

1. Double-click the PDF in File Explorer. It opens in whichever app Windows uses for PDFs, often Microsoft Edge.
2. To open it in a different app just this once, right-click the file, choose Open with and pick the app. The same menu lets you choose an app to always use for PDFs.
3. You can also drag a PDF onto any open browser window.

On a Mac

1. Double-click the PDF. It opens in Preview, which can read, search, fill in many forms and print.
2. For a quick look without opening any app, click the file once in Finder and press the Space bar.
3. To use another app, right-click the file and choose Open With.

When a dedicated viewer is worth it

The reader your device already has is fine for a quick look at a short PDF. A viewer made just for reading PDFs earns its place in these cases.

You need one thing in a long file

An insurance policy, a bank statement for the year or a textbook can run to hundreds of pages. On a phone, the app you have may hide search in a menu, or have none. Our viewer has a search button in its toolbar. It marks every match on every page, says how many there are, like 3 of 42, and takes you from one to the next. In our tests, it found all 416 matches of a word in a 14-page research paper in about half a second. Our guide to searching PDFs explains what to do when search finds nothing.

The print is tiny

Terms and conditions, land records, maps and old scanned forms often use very small text. Pinching to zoom on a phone only stretches the page as a picture, so small letters go soft. In our viewer, the plus button draws the page again, sharp, at the new size, in steps up to 400%. Fit width and Fit page in the zoom menu bring you back.

The file is huge

A scanned book or a year of bills can be hundreds of megabytes. Some readers load the whole file before they show anything. Our viewer reads it from your device in small pieces, only the parts needed for the pages on your screen. In our tests in Chromium, the browser Chrome is built on, a 1,000-page scan of 1.11 GB showed its first page in 0.8 to 1.5 seconds. A phone is usually slower than our test computer, so expect longer there.

The PDF has a password

Bank statements, salary slips, credit card bills and e-Aadhaar copies often come locked. Most readers, built-in ones included, open these once you type the password. Ours asks for it in a box right on the page, uses it only on your device, and doesn't keep it. The email or message that came with the file usually says how the password is made. For example, an e-Aadhaar PDF uses the first four letters of your name in capitals followed by your year of birth.

The computer isn't yours

At the office, a college lab or a cyber café, you often can't install a program, and you may not want a private file left behind. A web page needs no install, and our viewer keeps no copy of your file. See reading private PDFs on a shared computer for what else to do.

Open a PDF in your browser in three steps

1. Open the viewer. Go to PDF Viewer in any up-to-date browser on your phone or computer. There is nothing to install and no sign-up.
2. Pick your PDF. Tap Open a PDF and choose the file. On a computer you can also drag it from a folder and drop it on the page.
3. Read. Scroll down through the pages, type a number in the page box to jump, zoom with the plus and minus buttons, and press the magnifier to search.

The first page shows as soon as it is drawn, and the others are drawn as you scroll to them. The side panel shows small pictures of the pages and, if the file has them, its bookmarks, so you can jump to a chapter. Links inside the PDF work. The Turn button turns the pages a quarter turn for reading, but never changes the file. Every button is explained in the viewer's guide.

Your PDF is never uploaded. The browser reads it from your device and draws the pages itself, so it works the same for a bank statement as for a train ticket.

What to do when a PDF won't open

Most PDFs that "won't open" fall into one of these cases. The message you see usually tells you which.

The file is damaged or only half downloaded

This is the most common cause. A download that stopped when mobile data dropped, or a file saved from an email preview, is often cut short. Signs: the file is 0 KB, or much smaller than you expected, or our viewer says This file can't be opened.

• Download it again from where it came from: the bank's site, the exam portal, the original email.
• In WhatsApp or Telegram, wait until the document has finished downloading in the chat before you open it.
• If another PDF program opens it, that program may be repairing the damage as it reads. Save a fresh copy from there, and that copy should open everywhere.
• If nothing opens it, ask the sender for a new copy. A truly broken file can't be read by any viewer.

It needs a password

You can't open a locked PDF without its password, in any program. Look in the email or SMS that came with it, or on the website you downloaded it from. Passwords must match exactly: check Caps Lock, and don't add spaces. Our viewer opens locked PDFs when you type the password, but it can't remove the password from the file.

It is very large

A big scan needs memory to draw, and phones have less of it than computers. Close other apps and browser tabs, read at Fit width rather than a high zoom, and give big photo pages a moment to fill in. If you need to send the file somewhere, our PDF compressor can make it smaller, also without uploading it.

It isn't really a PDF

A file can be named .pdf and still be a Word document, a photo or a saved web page. A ZIP file can also hold PDFs inside it: open the ZIP first and take the PDFs out. Our viewer says Only PDF files work here when the file isn't a PDF. To turn photos of documents into a PDF, use JPG to PDF.

It opens, but says "Please wait..."

Some forms, often older government, tax or bank forms, are built in a way that only Adobe's own software fully understands. In other readers, ours included, they open to a single page saying something like "Please wait... your PDF viewer may not be able to display this type of document". For these forms, install Adobe Acrobat Reader on a computer. That is one job where it really is needed.

It opens, but something looks wrong

A page that stays blank is usually a large photo still being drawn. A font that looks a little different means the PDF left the font out and a similar one was used. Blurry text after pinching is fixed with the plus button. The troubleshooting list covers each message.

What our viewer can't do, and what to use instead

Our viewer only reads. It never changes or saves your file, so you can open anything safely. For other jobs, here is what works:

Files attached inside a PDF are not listed, and small programs (scripts) built into some PDFs never run. That is safer, but such a file may behave differently than in Adobe's software. The full list is in the viewer's limits.

Reading private PDFs on a shared or work computer

You look up an exam result at a cyber café, check a bank statement on an office PC, or open a medical report on a friend's laptop. Opening the file is easy. Leaving nothing behind takes a few more steps.

1. Read it in a page that keeps nothing. Our viewer doesn't upload your file, and doesn't save the file, your searches or the file names. Close the tab and the PDF is gone from the page.
2. Delete the download. The PDF you downloaded from your email stays in the computer's Downloads folder. Delete it when you are done, and empty the Recycle Bin or Bin as well.
3. Know what a private window does. An incognito or private window forgets your history and sign-ins when you close it, but files you download in it stay on the computer. You still need step 2.
4. Sign out. Sign out of your email and any portal, and say no when the browser offers to save your password.
5. Follow your company's rules. At work, your employer may have rules about where documents can be opened. Our viewer sends your file nowhere, which helps, but the rules come first.

Questions people ask next

Is Adobe Acrobat Reader free?

Yes, Reader is free to download. Adobe's paid program, Acrobat, adds tools such as editing. You need neither just to read a PDF.

Why do my PDFs open in the browser instead of Adobe Reader?

Your computer is set to open PDFs with the browser. That is fine for reading. To change it, use the Open with option on the file and choose the app to use every time.

Can I open a PDF without internet?

Yes. Built-in readers work offline. Our viewer also opens most PDFs offline once its page has loaded. A few files need an extra part of the reader first, such as fonts for Chinese or Japanese text.

Is it safe to open a PDF from someone I don't know?

In our viewer, scripts inside PDFs never run, and links to websites open only if you tap them, in a new tab. The bigger danger is usually the link itself. Don't type passwords or card details on a website a PDF sends you to.

Can I open a PDF on my phone without installing an app?

Yes. Open our PDF viewer in your phone's browser and tap Open a PDF.

Will opening it change my file?

No. Our viewer only reads. Nothing you do there, including Turn, changes the PDF.