Easy Digital Downloads Plugins
Little Package makes WordPress plugins that support manipulation of pre-existing PDFs using PHP libraries from TCPDF (good) and SetaSign SetaPDF-Stamper (best). Password-protect, encrypt, and restrict PDF viewing permissions. Even more exciting, mark/stamp PDFs with dynamic data collected from your users, such as their name, email address, and a lot more!
EDDiStamper PDF
Use the powerful SetaPDF-Stamper stamping library by Setasign for PDF watermarking and encrypted password/permissions protection of Easy Digital Download deliverables. Works on all PDFs, even those with internal links, forms and layers.
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EDDiMark PDF
Password, encrypt and/or add a text or image watermark to your PDFs upon Easy Digital Download file delivery, optionally customized with customer-provided details. Uses the open-source TCPDF library. Works on most PDFs without internal links, forms, or layers.
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PDFs are a fantastic way to share documents – they preserve formatting, are widely compatible, and can even be compressed for easy transmission. But what if that PDF contains sensitive or monetized information? The Portable Document Format (PDF) offers some security, which when stacked can be quite effective. These include: Watermarks. Adding content to a PDF, especially content customized to the end-user (such as their name and other personally-identifying information like phone/email, can not only personalize a PDF, but also thwart unauthorized sharing. Keep reading to find out how to make your watermarks most effective against PDF theft. Encryption. Arcfour RC4, and the superior 128-bit key or 256-bit AES encryption Passwording. User and owner passwords can be set. An owner password gives the holder full control over the PDF, including the ability to remove passwording entirely — share with caution! continue reading…
Many people and organizations put the extra care into their PDF documents to ensure they are usable by ALL humans, not just people with good vision and keyboard/mouse dexterity. What does this mean? It is often imperative documents be accessible due to accessibility codes and laws. So it must be very frustrating to have accessibility features removed by a PDF manipulation plugin! Unfortunately, the open-source PDF manipulation libraries I use for many of my plugins does not allow for robust or reliable PDF manipulation. Namely, TCPDI/TCPDF depends on being fed a syntactically correct PDF, and then because of the way objects are read flat into PHP memory during the process, certain PDF features in the stream are necessarily lost. Marking/passwording with TCPDI/TCPDF or FPDI/FPDF is lossy, no way around it. However, the SetaPDF library from SetaSign works differently by parsing continue reading…
If you are or even if you are not using WooCommerce or Easy Digital Downloads but are still programming in PHP, I am available to consult on your TCPDF barcoding project to get it running. Get in touch! The WaterWoo PDF Premium and EDDiMark PDF plugins can add barcodes and QR codes to PDFs dynamically upon download request via WooCommerce or Easy Digital Downloads. This is because both WordPress plugins use TCPDF to write PDF content, and TCPDF allows for barcode creation. Though this blog post might also be helpful for someone just trying to figure out how to write a barcode with TCPDF and PHP, these instructions are more geared toward a WordPress developer wishing to add 1D or 2D barcodes to existing PDF files. For WaterWoo, use the ‘wwpdf_add_barcode’ filter hook in the plugin (located in classes/wwpdf-watermark.php). continue reading…
When it’s impossible to have customers in the store and clients face-to-face, how can money be made? One fairly obvious, and earnest-enough, method is by selling your reputation on paper: gift certificates and gift vouchers. For many businesses there is a real opportunity for income here. And many (future) loyal customers understand that purchasing gift certificates is a way to support businesses right now. They know that by making these purchases, when the Great Shutdown begins to heal, their community might look closer to how it did in 2019.
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