A guide which shows or indicates the way to do something.

Guide

How to redact PDF text with the JPedal Viewer

TL;DR The JPedal PDF Viewer can be used to redact text in PDF documents. Select ‘Redact’ from the tools menu and draw a rectangle...
Jacob Collins
3 min read

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
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
2 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
2 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
3 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
2 min read