The next step is straightforward: invoke writePDF() method with PDFUA parameter. Without the license code (or with a code of PD4ML license type, which does not enable PDF/UA feature) it still going to generate PDF/UA documents, but watermarked with “Evaluation” banner. Make sure your input HTML document specifies, ,, etc.įirst you need to obtain PD4ML UA license with a license code. PD4ML generates it for you from known document/environment info.

PDF/UA document must be supplied with XML metadata.

It is also a good idea to specify LANG attribute if the content not in English. PD4ML uses for that a content specified by TITLE and ALT attributes of HTML tags.

The document structure elements must have alternative descriptions.With PD4ML the task is trivial: a document structure comes from input HTML and can be perfectly automatically transformed to PDF tags. It is probably the most annoying task to fulfill if you create PDF/UA using WYSIWYG tools from scratch or do manual PDF post-processing to achieve PDF/UA conformance. It must include information regarding the nesting and relationship of different types of structure elements. But the major ones are covered only starting from PD4ML v4 – thanks to the new product architecture, which has been designed bearing in mind PDF/UA conformance.

PDF/UA does not add any new features to the PDF file format, but makes some aspects required which are optional in a regular PDF.Ī lot of the requirements, like fonts embedding, were implicitly fulfilled even by older versions of PD4ML. PDF/UA standard is to let people with disabilities access PDF information in an efficient manner without assistance from others and be able to receive the same value from the content as others. One of the major reasons to migrate to PD4ML v4 API is the support of the PDF/UA standard (Universal Accessibility).

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