2025年1月27日 · The file will fail to work well (even if attempted) in xfa readers that are not running on Adobe servers. When running in a Web based Adobe Application they will work as intended. And the XML text editor will make these changes. inside the embedded data.

2015年12月19日 · Now look for the <xfa:datasets> tag; it will have a subtag <xfa:data> (probably empty if the form is empty) and a subtag <dd:dataDescription>. Inside the dataDescription tag, you'll find something that resembles XSD. That's what …

2017年3月29日 · They don't handle the XFA, they read the AcroForm as though the XFA didn't exist. However, with Dynamic XFA, it is very likely that there are no form fields in the AcroForm dictionary until the viewer renders the XFA into a PDF... Acrobat does this automatically but other libraries that can't create a PDF DOM from the XFA DOM won't be able to.

2015年11月24日 · XFA is very different from AcroForm technology. Changing an XFA form requires that you [a.] extract the XML that describes the form from its PDF container (possible with iText), [b.] update the XML (outside the scope of iText: do this with any XML manipulation tool), then [c.] put back the XML into the PDF containter (possible with iText).

If PDF have xfa forms you can use itext (Java) or itextsharp ( .net) to Populate your Data . Only problem with XFA Forms are they cannot be Flatten with itext only way to Flatten I found is using bullzip or similar pdf creator to open that xfa pdf created with itext and pass it through bullzip which will spit out flatten pdf version.

2017年6月7日 · The XFA schemas are written in the language RELAX: Next Generation (RNG) which is described in RELAX-NG. XFA schemas are written in this language rather than the more usual XML-Schema 1.0 because XFA allows free ordering in situations where XML-Schema cannot support it. ...

2018年11月29日 · With a decent PDF library tool, you can replace the xfa data element with the new data and the form will be filled. There are any number of libraries that can do this. However, you might find it easier to convert the XFA to and XDP file so that you can use and XML library to swap out the data element without needing to alter the PDF. –

2021年7月5日 · With PyPDF2, I open xfa pdfs and extract the xfa data of human-filled PDFs. However, my application also sometimes "fills in" these xfa forms using C# 's (deprecated) iTextSharp library. My problem is that PyPDF seems unable to properly open the pdf files after I've filled them using the C# component.

I use iText/iTextSharp when working with both Acrobat and LiveCycle (XFA) forms. You need need to get access to the LiveCycle XML DOM as the starting point: iTextSharp Example: string sourcePdf = @"c:\livecycle.pdf";<br> PdfReader reader = new PdfReader(sourcePdf);<br> XmlDocument xmlDoc = reader.AcroFields.Xfa.DomDocument;

I need to populate XFA form fields in a PDF (created with Adobe LiveCycle Designer). We're attempting to use iText (actually iTextSharp with C#) to parse the PDF, populate the XFA fields and then save the modified PDF back out. All the examples I can find with iText (very few iTextSharp examples) talk about modifying AcroForm fields.