How to convert PDF to ePub and set font size of ePub texts with command line

This article is mainly about how to convert PDF to ePub and set font size of ePub texts with the command line application VeryPDF PDF to ePub Converter.

PDF can represent documents in a manner independent of application software, hardware, and operating systems. While its fixed-layout property makes it not display well on portable readers on your iPad, iPhone, etc. With the coming of e-reading age, ePub ebook format became more and more popular across the world. ePub is designed for reflowable content, meaning that the text display can be optimized for a particular display device used by the reader of the ePub-formatted book.

VeryPDF PDF to ePub Converter can convert Word, Excel, PowerPoint, RTF, TXT, CHM, image, PDF, HTML, etc. to ePub. What’s more, you can set font size of ePub texts.

To know how to use this command line application to convert PDF to ePub with a specific font size, please do as follows.

Firstly, please download VeryPDF PDF to ePub Converter and unzip it to a folder on one of your computer disks. In the unzipped folder, there is an executable file named as epubconverter.exe which is the called program and a TXT file named readme.txt which explains the usage and options of this program.

Secondly, please open the MS-DOS command prompt window where you are able write and run commands.

According to the application, please refer to the following command line template to write your commands in the opened MS-DOS command prompt window.

epubconverter [options] <pdf-file> [<epub-file>]


  • epubconverter: refers to the called program- epubconverter.exe.
  • [options]: refers to the options you set to control the conversion.
  • <pdf-file>:refers to the input file.
  • [<epub-file>]: refers to the output ePub file.

To set font size for the created ePub texts, please use the option: -fontsize <int>which is used to set text fontsize of the ePub file

For example,

D:\verypdf-pdf-to-epub-converter\epubconverter.exe –fontsize 28 “D:\nature.pdf” “E:\nature.epub”

The above command line is to convert nature.pdf document to catalog.epub file and set the font size of the created ePub texts as 28.

Lastly, please press the Enter button on the keyboard to run the commands.

Several minutes later, you can see the output ePub file in the specified folder.

This is the end of this article and you can enjoy full version of VeryPDF PDF to ePub Converter here.

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