PDFs on mobile devices

Overview

Adobe PDF iconPDFs are not like Word documents. The text is stored at a specific position and in a specific font, colour and size on the page, and hence it is not usually possible to change the font size or type. This is particularly true of book chapters or documents which have been scanned into PDFs using a photocopier, as these pages are stored as images not text.

However, the Adobe Reader App for mobile devices attempts to extract text from compatible text-based PDFs and present them as a continuous document, where you can adjust the font size and change the background colour.

Note: you may get mixed results and images or charts may not appear as expected, but it is worth having a go if you have a tablet or large screen mobile phone.

Changing to continuous text

  1. Open your PDF file using the Adobe Reader App on your mobile device.
  2. Tap the top of the page to access the App toolbar. Tap the Page icon: adobe-reader-app-page-layout-icon.
  3. Select Text Reflow from the menu that appears.

In Text Reflow mode you can now resize the text by pinching/double-tapping the touch-screen.

Changing the background colour

  1. Open your PDF file using the Adobe Reader App on your mobile device.
  2. Tap the top of the page to access the App toolbar. Tap the Page icon: adobe-reader-app-page-layout-icon.
  3. Select Turn Night Mode On from the menu that appears.

To revert to the original colouring, repeat the steps above and select Turn Night Mode Off.

Useful links

One thought on “PDFs on mobile devices

  1. Just an analogy……My brother likes to haul his furniture in his small car when he moves as opposed to renting a U-Haul truck! Go use the big device to see big things. your eyes can only be strained so much.

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