[PDFBOX-2333] Overhaul the appearance generation for PDF forms

• Type: Improvement
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: AcroForm
• Assignee: Maruan Sahyoun
• Reporter: Maruan Sahyoun
• Created: 09/Sep/14 15:04
• Updated: 17/Mar/16 19:08
• Resolved: 20/Jul/15 21:18

Description

The appearance handling for forms in 1.x is limited and does not reflect all settings possible for form fields. In addition the current code is not very modular and does not follow the box model used for form fields.

Unfortunately only the basics of form handling are defined in the PDF spec. The details like padding of boxes, text placement etc. have to be determined by looking at how Adobe forms are generated.

Update: The file from PDFBOX-2310 has bad rendering which might be related?

Issue Links

• is depended upon by: PDFBOX-40 Font problem when setting form value
• is depended upon by: PDFBOX-283 Character encoding/appearance issues when filling forms
• is depended upon by: PDFBOX-101 ImportXFDF results in PDF with larger text fields
• is depended upon by: PDFBOX-129 Error when setting the value of a combo box to " "
• is depended upon by: PDFBOX-932 Swedish characters are garbled in form
• is depended upon by: PDFBOX-1231 AcroForm appearance generator
• is depended upon by: PDFBOX-1419 PDField.setValue is not behave correctly
• is depended upon by: PDFBOX-1550 Helv vs. Helvetica font names cause PDField.setValue to fail
• is depended upon by: PDFBOX-2062 Setting a PDFFormField's value with a specific font size causes the font size to change on click
• is depended upon by: PDFBOX-206 Setfield is not working in Acrobat 7.0
• is depended upon by: PDFBOX-1402 Improve handling of multiline text boxes