AcroForm values missing after flattening

Question

I\'m using LibreOffice 4.1.3.2 to produce a fillable PDF:

1. Created a Writer document
2. Set some text and test fields
3. Exported to PDF

Answer 1

When creating a form using Open Office, Open Office sets a flag telling iText not to create appearances. If you look at the FillDataSheet example, you'll see that we override this with the following line:

fields.setGenerateAppearances(true);

In your specific C# snippet, that would be:

f.GenerateAppearances = true;

It's important to set this value before setting the fields or the appearances won't be created.