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Brazil Shops can print CPF on a PDF

October 6th, 2018

Here is an example of adding new magic tags to PDF Ink for on-the-fly and totally-customized watermarks. A Brazilian customer using WooCommerce requested a magic tag to display the Cadastro de Pessoas Físicas (CPF) on PDFs. CPF is a taxpayer identification number all citizens of Brazil must use to shop online within Brasil. In order to collect CPF data from customers, our customer uses the Woocommerce Extra Checkout Fields for Brazil plugin.* We wrote the following code to programmatically create the magic tag [BILLING_CPF]. This magic tag will import any customer’s CPF number into their personalized PDF during stamping (when the customer clicks download). The “WooCommerce Extra Checkout” plugin mentioned above must be in use, […]

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TCPDF Performance Tuning

April 26th, 2016

TCPDF is a third-party library which does its best to parse/understand and re-write your PDF with your desired changes (watermarks/encryption/etc), but it cannot possibly work on all PDFs and on all servers 100% of the time. Below are some suggestions on how to make your setup play nice with your server (part of a disk on a computer in a room somewhere in the world you probably have limited control over). Stay realistic, think carefully through the process, plan, and do your testing. Hosting Plans If you have large PDFs, complex watermarks (HTML, images, fonts, encryption) and/or heavy customer traffic, you may also want to upgrade your hosting so you can use more CPU if […]

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