May 14, 2025 Updated: June 17, 2025
Almost all PDF watermarking plugins for WordPress lose fidelity when it comes to forms, layers, and table of contents (TOC). This means you can gain a PDF password and stamping, but lose original PDF functionality. Using PDF Ink and SetaPDF-Stamper together is the solution to this problem.
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January 23, 2025 Updated: June 17, 2025
Look ma! No WordPress required! In the documentation for PDF Ink, it is explained how to write a simple script to fire up the PDF Ink PHP library and stamp a PDF file. The library is written in such a way that it can be used without WordPress, and any one of six different PDF-manipulation library sets can be used. This is helpful when one set doesn’t work with a specific PDF, but another set might. As always, when PDF Ink fails for any specific PDF, the solution is to either attempt to repair the PDF — or upgrade to a better library, like SetaPDF-Stamper. The example in the documentation […]
October 27, 2023 Updated: June 17, 2025
The two best plugins available for WooCommerce PDF file download watermarking/passwording are WooCommerce PDF Watermark and PDF Ink (sold here). If you’re considering purchasing one or the other, this post will clearly show you which is the better choice — by far. Both plugins have been available for many years, both plugins perform the same essential tasks, and yet they are quite different under the hood. They offer different features, and at different price points. What’s under the hood: Both plugins use free, open-source PDF manipulation libraries to accomplish passwording and watermarking. WooCommerce’s offering uses FPDI to parse PDFs and FPDF to re-write them.As of October 2023, WooCommerce is using […]
September 1, 2022 Updated: June 17, 2025
Lately several customers have been reporting that the official WooCommerce “PDF Watermark for WooCommerce” plugin is broken, and they’re relieved to have found us. It’s a shame it broke for whatever reason. We are glad to have you here! Taking another look at the PDF Watermark for WooCommerce feature list and the two promised “coming soon” features they’ve had posted for over 5 years gets us wondering, though: why people pay more for less plugin features? And what is in a WordPress plugin name? Feature Comparisons Below follows a brief list of PDF watermarking plugin features where the two plugins differ vastly; our plugin blowing the competition out of the… […]
December 10, 2020 Updated: June 17, 2025
At the moment there are quite a few softwares (mostly paid) that allow you to manipulate PDF files as they are sold online. Some even allow you to add identifying customer data to the PDF in order to copyright, encrypt and password intellectual property. Currently the WordPress plugin scene includes three main routes for PDF manipulation. Risking simplifying things to a degree and possibly excluding outliers on the market, most products for WordPress will use these library set #4: Watermarkers using FPDI/FPDF (Option 4) include WooCommerce PDF Watermark from WooCommerce, the Ignite WooCommerce PDF Watermark Stamper, and Tips & Tricks’ WP PDF Stamper. Basically, all the competition uses the same […]
March 21, 2020 Updated: June 17, 2025
The SetaPDF Core library allows quite a bit of font customization to be done. Check out the official documentation on SetaPDF and fonts & encoding. For the meantime, a quick tutorial on how to get other fonts beyond the five packaged with the plugin (Times, Courier, Helvetica, Symbol & Zapf Dingbats). There are two methods: settings panel and programmatic. 1. Adding Fonts Via The Settings Panel Under the font selection in PDF Ink settings, you will see a link to add a custom font. Click it! This will take you to a font uploader screen. There is also a link called “Add Fonts” in the main WordPress sidebar menu. Upload […]
