Jacob Collins

  • https://www.idrsolutions.com/team#jacobc Jacob is the JPedal Product Manager and specialises in PDF creation and manipulation. He also develops Salesforce backend systems and contributes to marketing and support. Outside of work, he’s a 1900‑rated chess player, guitarist, and French learner.

 



77 Stories by Jacob Collins

Why choose a pure Java PDF library?

TL;DR Choosing a pure Java PDF library ensures seamless cross-platform deployment and enhanced security through JVM-managed memory. This strategy minimizes technical debt by simplifying...
April 16, 2026 3 min read

How to remove text from a PDF in Java using JPedal (Tutorial)

TL;DR True PDF redaction in Java requires two things: hiding the text visually and removing it from the content stream. This tutorial shows how...
April 9, 2026 3 min read

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...
April 2, 2026 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...
March 23, 2026 1 min read

How to extract text from a PDF as JSON in Java

Tagged PDF files carry a structure of headings, paragraphs, lists and tables. This tutorial extracts that structured content as JSON in Java with JPedal…
March 23, 2026 4 min read

How to add a CMYK image to a PDF in Java (Tutorial)

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...
March 23, 2026 2 min read
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