Customer saw the MCS-150 looking blank / 'data covered by the form fields': the
values were correctly written to the AcroForm /V, but pypdf left the template's
empty /AP appearance streams in place and NeedAppearances was false, so viewers
rendered the blank widget over the value. Setting AcroForm /NeedAppearances=true
makes viewers regenerate appearances from the values. (The missing signature was
a downstream effect of the separate fobj_put MinIO-upload bug, now fixed -- with
no PDF in MinIO the anchor extraction + signature stamping both failed.)
Uses pypdf to fill the official MCS-150/150B/150C fillable PDFs.
Maps intake data to 289 form fields (text + checkboxes).
Supports form type detection (standard vs hazmat vs intermodal).
Produces ready-to-fax PDF from intake data.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
