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

How to extract embedded files from a PDF in Java (Tutorial)

PDF files sometimes reference external resources such as images or other documents. To increase portability and ease archival of such PDF files, these resources...
2 min read

Digital Signatures in a PDF

Digital signatures are a stamp of authentication for digital information. For PDF files, they provide the ability to detect whether the document has been...
2 min read

How to search for text in a PDF file without opening it

Introduction Can you determine if a PDF is searchable for text without opening it? Well you will need some special software. This might be...
2 min read

Glossary of PDF Terms

This article lists and defines commonly used terminology from the PDF world. AcroFormAcroForm is a PDF form format that was introduced in PDF 1.2. It...
2 min read

How to remove a page from a PDF file in Java (Tutorial)

The PDF file format is not natively supported by Java. Therefore, to remove a page from a PDF file, you will need an external...
2 min read

How to split PDF files in Java (Tutorial)

Java has no built-in PDF support, so splitting a PDF means picking a library. This tutorial splits PDF files in Java into single pages, two files or fixed-size chunks with JPedal…
3 min read