JPedal is a Java PDF library for viewing, converting and printing PDF files. It makes it very easy for developers to work with PDF files in Java. Read more here.

JPedal

How to remove unused objects from PDF file (Tutorial)

PDF files sometimes contain objects which are never used. This increases the file size and is wasteful. This tutorial shows you how to reduce...
Jacob Collins
Mar 23, 2026 44 sec read

How to extract text from a PDF as JSON

Some PDF files can be “tagged” which means they contain information about the structure of the file. This structure is embedded as metadata within...
Jacob Collins
Mar 23, 2026 1 min read

How to add a CMYK image to a PDF…

TL;DR Printers operate in CMYK colour space rather than RGB, so adding a CMYK image to a PDF will ensure printing accuracy. The JPedal...
Jacob Collins
Mar 23, 2026 1 min read

How to convert PDF files to ePUB

Not all PDFs are created equally. Some go beyond simple visual layouts and include internal tags that describe the document’s structure. These are known...
Jacob Collins
Mar 23, 2026 1 min read

How to flatten PDF layers in Java (Tutorial)

TL;DR Flattening PDF layers in Java is a way to lock a document’s appearance, ensure cross-device compatibility, and reduce file size by merging optional...
Jacob Collins
Mar 18, 2026 1 min read

Java PDF to AVIF conversion (Tutorial)

Why convert PDF files to AVIF images? A PDF is a vector image (so it is rendered when you display it at whatever size...
Jacob Collins
Mar 11, 2026 1 min read
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