Moto G Stylus ReviewSource: Daniel Bader / Android Central

As a parent (and as an adult), I often receive PDF documents that require a signature. In this day and age, it's such a pain to try to print out the document, sign it, scan it, and send it back. Wouldn't it be much easier to just sign on the dotted line from your device and send it back, no printing required? We'll show you how to do just that so that you can sign a PDF document from your Android phone, wherever you may be.

Products used in this guide

How to sign PDF documents from your Android device

  1. From the Google Play app, search for Adobe Acrobat Reader.
  2. Tap Install.
  3. Tap Open.

    Adobe Sing Pdf Android 1Source: Android Central

  4. Sign into Adobe via Google, Facebook, or an alternative method.
  5. Now that you're signed into Adobe, you will be asked to set up an Adobe account.
  6. When this is done, tap Continue.

    Adobe Sing Pdf Android 2Source: Android Central

  7. Tap on the Files icon at the bottom of the screen.
  8. Here you can connect various file services to Adobe Acrobat Reader, or open files from your device. I'm going to tap on Google Drive to get access to my personal files.
  9. Tap on Add account.
  10. When you see a popup from Google asking you to authorize Adobe Acrobat Reader, tap Allow.
  11. Tap OK.

    Adobe Sing Pdf Android 3Source: Android Central

  12. Find a PDF file and tap to open it.
  13. To comment, annotate, or sign the document, tap on the blue pencil button at the bottom right of the screen.
  14. Tap on Fill & Sign to sign the document.

    Adobe Sing Pdf Android 4Source: Android Central

Note that as in this example, not all PDFs can be signed in this way; instead, they need to be unprotected, and/or have fields enabled to sign. That being said, even if a document doesn't have signature fields, as long as it's not protected, you can still write comments on the PDF.

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The bottom line is that you'll have to download some sort of PDF app in order to sign the document and return it. There are hundreds of these on the Google Play store, as well as note-taking and drawing apps that let you annotate documents, but our top recommendation is Adobe's old standby, Acrobat Reader.

Our top equipment picks

The default app for manipulating PDFs has to be Adobe's Acrobat Reader, but there are other options with different features.

PDF pedigree

Adobe Acrobat Reader

The default PDF app

Adobe makes some of the best editing, design, and productivity apps on the market, but perhaps the one app that everyone is familiar with is Acrobat Reader. Download this utility to your Android phone so that you can edit, markup, and sign PDF documents on the go from anywhere!

All-in-one tool

Xodo PDF Reader & Editor

Swiss Army Knife

Xodo can do it all. From annotating and editing PDFs to syncing with Dropbox, Google Drive, and OneDrive. You can also save a signature for later use.

Award-winning

PDF Reader

Fan favorite

Not only does this leading app let you sign and markup PDF documents, but you can even convert text to speech! With an in-app purchase, you can unlock these features across multiple devices, enjoy night reading mode, and send PDFs as faxes.