NextPDF journal
EU e-invoicing rules increasingly require structured invoice data in covered workflows. A hybrid file pairs a readable PDF with data for tax and procurement systems. NextPDF Enterprise produces both layers.
NextPDF runs inside your PHP process. That deployment topology shapes how you scale, secure, and test the documents you produce.
TCPDF has a large installed base and a large body of working code. The compatibility adapter delegates 94 surveyed methods and makes most migrations a one-line import change. Its 15 silent-ignore and 4 unimplemented methods define the review set.
The four PAdES levels define what a signed PDF preserves and for how long. This guide maps each level to its evidence, the NextPDF edition that produces it, and the applicable responsibility boundary.
The NextPDF Cloudflare adapter turns a Worker into an edge rendering endpoint your PHP app can call, with SSRF hardening and custom fonts from R2.
Tagged structure gives assistive technology headings, reading order, and alternative-text fields. For documents within scope, EU accessibility rules make that structure a requirement. NextPDF emits the structure.
