1. Home
  2. Mobile

PDF+PDF Lite: Read & Annotate Two PDF Documents Side By Side [iPad]

There are quite a few PDF readers on the App Store, but this is the first time we’ve come across an app for iOS that lets you read and annotate multiple PDF documents simultaneously. The app is called PDF+PDF Lite and it is designed specifically for the iPad. The app is designed to relieve you of the headache of consulting and annotating books, journals and documents when the time is scarce and you have ample studying to do. With PDF+PDF Lite, you can crop pages in a PDF doc, change background color, annotate important sections and copy text from one PDF document to the other all within the app.


PDF+PDF Lite requires you to add PDF documents in the app through iTunes. The app provides you with the option to read and annotate two PDF documents side by side. You can easily change the order of their placement by drag one over the other or remove a PDF document from the reading view by dragging it over the bin in the bottom-right corner of the app’s homescreen. While reading, you can switch from double to single document view by double-tapping one of the two.


Tapping the center of the screen while reading a document brings up a circular annotating menu, which allows you to crop a section of a document, change background color, scribble on a document as well as copy and paste text from one document to the other or somewhere within the same document should the need arise.

scribble change background color

The app offers you a rotate option in the annotating menu that lets you read a book backwards from the last page to the first. You can choose various colors to scribble on the documents along with the thickness of the pen. In case you do not like the location of an arrow or note you have scribbled, the app lets you adjust its position. You can choose a from six available background colors for a document. The crop feature of this app lets you shave off the empty space that some documents have, to have the text occupy as much space on the screen as possible.

PDF+PDF Lite has gone an extra mile in its genre. This app is not only meant for students and professionals who have to go through grueling hours of study everyday, but also for the bookish lot out there who eat, sleep and drink literature of all sorts. It is available for free on the iTunes App Store and can be downloaded at the link below.

Download PDF+PDF Lite


  1. Where did this app go? It looks perfect for what I need, but it’s no longer available on the App Store.

    • Please help find this app! It is the only one I have found so far that lets you view two PDFs at the same time and now it is gone from the App Store. Does anyone know what happened to it?

    • No idea what happened to the original app, but I found a good alternative.
      Easy Annotate also allows studying and viewing two PDFs at the same time.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.