Learn how to add a table of contents to a PDF to get a sense of its structure.
Learn how to use PDF portfolios to keep study materials in one place and make integrating their content easier.
Turn scans of book pages and photos of handwritten notes into PDFs, then use optical character recognition to make their content editable. Learn more.
Learn about the more advanced text formatting options in PDFpen, including kern, ligature, and baseline, and more.
Add watermark in PDF—ever wonder how to do that? In this article, we give you step-by-step instructions for watermarking PDFs in PDFpen so you can protect your documents.