XFA
XML Forms Architecture
A legacy Adobe XML-based form technology in PDF that supports dynamic layouts and rich form logic, deprecated in PDF 2.0.
Техническая деталь
PDF XFAs use the AcroForm or XFA specification to define widgets that capture user input. AcroForm fields support text, checkboxes, radio buttons, dropdowns, and signature fields with built-in JavaScript validation. Each field stores its value separately from the visual appearance, allowing programmatic extraction and pre-filling. XFA (XML Forms Architecture) offers more dynamic layouts but is deprecated in PDF 2.0 in favor of AcroForm.
Пример
```javascript
// Fill PDF form fields
const form = pdf.getForm();
form.getTextField('name').setText('Jane Doe');
form.getCheckBox('agree').check();
form.getDropdown('country').select('United States');
// Flatten form (make fields non-editable)
form.flatten();
```
Связанные форматы
Связанные инструменты
M
Merge PDF
S
Split PDF
C
Compress PDF
R
Rotate PDF
A
Add Page Numbers
P
PDF to JPG
W
Watermark PDF
R
Reorder PDF Pages
F
Flatten PDF
E
Edit PDF Metadata
S
Sign PDF
J
JPG to PDF
E
Extract Text from PDF
D
Delete PDF Pages
R
Reverse PDF
E
Extract PDF Pages
E
Extract Odd/Even Pages
R
Resize PDF Pages
C
Crop PDF
I
Insert Blank Pages
D
Duplicate PDF Pages
P
PDF to PNG
A
Add Header & Footer
A
Add Text to PDF
A
Add Image to PDF