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The I-9 form an XFA application, not something anyone sane would recognize as a proper PDF. It's all JavaScript and XML-based forms stored as opaque streams ins
by nybble41 5y ago
The I-9 form an XFA application, not something anyone sane would recognize as a proper PDF. It's all JavaScript and XML-based forms stored as opaque streams inside a PDF container and has almost nothing in common with standard PDF files beyond the container format. It works in Mozilla because Mozilla's pdf.js supports XFA as of Firefox release 91. Most PDF readers do not support XFA, which is quite reasonable considering its rarity and the fact that it has been deprecated for several years. An HTML form would have been a far better fit for this purpose.