صنف EHPDFHeadlessAppearanceError

The typed error raised by HPDFHeadlessAppearance for invalid options, malformed fonts, embedding permissions, invalid Unicode, missing glyphs, budgets, and unsupported text layout

Failure returns النوع THPDFHeadlessAppearanceFailure؛ ورسالة الاستثناء تصف الشرط الدقيق

Cancellation uses the existing EHPDFOperationCancelled contract, while document field policies and security checks use EHPDFHeadlessDocumentError