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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?

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Refer to this article.… – TheKojuEffect Jan 30 '13 at 10:21
up vote 1 down vote accepted

You can install extension in LibreOffice. To install,

sudo apt-get install libreoffice-pdfimport
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I tried it, unfortunately, the book is too big, so it is opening long time and than hangs up. Any ideas? – tikend Feb 15 '13 at 10:35

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