7 Best PDF Annotation Apps for Android in 2021

Elise Williams

2021-11-15 15:53:03 • Filed to: PDF Apps • Proven solutions

You may want to highlight the important points, add some explanation wherever needed and cross out unnecessary stuff on Android devices. PDF annotation software allows you to highlight PDF, add notes to PDF files, and underline your PDF files. Here will be a top list of 7 PDF annotator Android.

#1: PDFelement
#2: Xodo - PDF Reader & Editor
#3: Adobe Acrobat Reader
#4: PDF Reader
#5: iAnnotate PDF
#6: PDF Max
#7: EzPDF Reader

Best PDF Annotator Android

1. PDFelement

PDFelement for Android is a free PDF annotator. It boosts your productivity with everything you need to read, markup, and sign PDF files on the go.

PDFelement provides you with a wide selection of annotating tools such as highlight, underline, strikethrough. It also enables you to combine, crop, rename and move PDF files on your Android devices.

Advantages:

It is free without any In-App-Purchase
It stores and accesses your files from the cloud including Google Drive, Dropbox, OneDrive, and Box.
Wide selection of annotating tools like pencil, highlighter, underline, shapes, etc.
Easy to use without learning curve;
You can move, rename, copy, delete PDF files as you want.

2. Xodo - PDF Reader & Editor

Xodo is the highest-rated app out of all the five reviewed. It has all the important features of annotation packaged in a nice beautiful design. It isn't just beautiful – it is easy and fun to annotate with Xodo.

The notable feature in Xodo is the ability to add signatures and also fill forms. Xodo Connect allows you to collaborate online with others while Dropbox integration gives you the cloud storage ability. And it is free.

Advantages:

You can collaborate online with your group and friends using Xodo Connect.
It has form filling and electronic signatures.
It has a large number of annotation tools.
Beautiful UI.

Disadvantages:

It can't access PDF files from your SD card.

3. Adobe Acrobat Reader

The latest versions of Adobe Acrobat Reader have introduced annotation and commenting features for marking up your PDF documents. The annotations and comments you’re going to save on your PDF can then be open and edited on your Android devices. Adobe Acrobat Reader focuses on speed and simplicity. Critically, it has a quick search and amazing zooming function, which is ideal for small mobile devices.

With Adobe Acrobat Reader, you are able to leave comments on PDFs with drawing tools or sticky notes, as well as highlight and markup text using annotation tools. This makes it one of the most comfortable PDF annotators for Android depends on the kind of document that you are going to read.

Advantages:

Fast.
Arranges documents properly.
Share your documents.
Three viewing modes.
Easy search function.

Disadvantages:

No advanced options.
Fussy about file names.

4. PDF Reader

PDF Reader allows you to perform annotation. It offers PDF annotation and editing and also allows you to convert the PDF document to other formats in order for you to edit it in other apps if you want or need to. With the help of PDF Reader, you can easily annotate documents and read files with few taps on your mobile screen.

Advantages:

User-friendly interface.
Smooth navigation.
Advanced PDF Text Reflow.

Disadvantages:

For Android 2.0+ phones.

5. iAnnotate PDF

iAnnotate PDF was originally released for Apple's iPad. Its popularity in iPad devices pushed it to be started on Android devices. Yet, the best thing about the Android version is that it is free as compared to the paid iPad version. iAnnotate PDF is one of the best apps for annotating PDF files. It makes a perfect balance between providing sufficient tools yet not sacrificing on the UI. iAnnotate PDF's interface gives you the desktop PC feel while at the same time allowing you to use android's touch screen functionality. It consists of the typical annotation tools such as Pen, Highlighter, Underline.

There is a Getting Started page and Quick Reference Guide that helps new users to get to know the strength of the program in minimal time. iAnnotate PDF is optimized for tablets but it works pretty well on smartphones. And finally, their cloud sync service allows you to stay connected to your files wherever you go.

Advantages:

Yous can annotate PDF files, draw and highlight PDF text easily.
It stores and accesses your files from the cloud including Google Drive, Microsoft OneDrive, and Box.
It has a number of tools, pencil, highlighter, underline, note, and stamp tools.
It has a beautiful UI.
You can open multiple PDF files.

Disadvantages:

It is not as good as the original iOS version.
No Eraser tool.

6. PDF Max - The #1 PDF Reader!

PDF Max is another reliable app for annotation, reading, or editing your PDF file documents straight from your Android devices. It lets you to make the documents with handwriting and highlights, insert stamps and text, sign and even edit the PDF pages. Basically, PDF Max Free is a great choice for filling out PDF forms straight from your Android device.

Furthermore, its advanced zoom-in feature is a supreme tool that’ll help you in taking notes and filling non-interactive forms. When it comes to the interface, PDF Max is known for its very simple design. But when you get into annotating and reading, it is going to look a lot nicer. You can customize by tapping the button to change the color, size, thickness, redo, undo, and a lot of other options. It is amazingly instinctive, and it is known to have the simplest-to-use editing tools you can find. It has all the common features which are filling out forms, commenting, signing, drawing along with some pleasant extras such as cloud storage syncing, text-to-speech reading, and text reflow view.

Advantages:

User-friendly interface.
Fast and easy PDF rendering.
Smart zoom.
Smooth vertical scrolling.
PDF text to speech.
Open documents in multiple tabs.
Multipurpose sidebar.
Advanced PDF Text Reflow.

Disadvantages:

No save signature.
No edit text.
No auto-save.
No S-pen support.

7. EzPDF Reader

EzPDF Reader is best to say as a PDF reader and as well as a PDF annotator. This app enables dual page view and it is like that you are reading on PC. Filling forms and signing on PDF files is a good feature especially for work when someone sends you a document to sign. As a PDF annotator, it does what it should do, highlight text, draw some ovals on the text, underline important information, color some text, resize and take sticky notes.

Advantages:

With the dual-page view and page flipping, you will have the best reading experience.
It can play multimedia files directly in the app.
It has the functionality of adding a signature on the file and e-mail it.

Disadvantages:

It's a free trial version. You need to buy a license for full usage.
It doesn't work for some Samsung devices.

Best PDF Editor Available for Desktop - PDFelement

PDFelement for Mac is a desirable desktop PDF editor with powerful functions to help you get control over PDFs. It is easy to use and yet fast, allowing you to edit, convert, annotate and sign so on.

Product Features	PDFelement for Android	PDFelement for Mac
Edit PDF Files
View PDF Files
Annotations and Comments
Create PDF Files
Fill & Sign Forms
Page Management
Bookmarks Management
OCR feature
Add Watermarks, Backgrounds, Headers and Footers
Access to Hundreds of PDF Templates