I have some e-books in PDF and Kindle, but the font is too small to read on it. I want to make fonts larger in PDF files so that the pictures and other stuff in it is unchanged (therefore I cannot use Calibre to convert it to another format).

Is there any editor for Ubuntu that can manage to change font size in PDF files?


2 Answers 2


You can install extension in LibreOffice. To install,

sudo apt-get install libreoffice-pdfimport
  • I tried it, unfortunately, the book is too big, so it is opening long time and than hangs up. Any ideas?
    – tikend
    Feb 15, 2013 at 10:35

LibreOffice is a free tool for such purposes, but its pdf editing features are quite restricted. I prefer the PDFfiller tools because they are close to Adobe Acrobat, which I was using before switching from Windows to Ubuntu. However, it's a paid service that runs as a web application only.

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