Merging PDF Pages: Empty FormFields

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   Hi everyone,I’m working on merging two or more PDF pages into a single page using the "DrawCapturedPage" function. This works fine overall, but I’ve run into a problem:
The form fields that I previously filled using "SetFormFieldValueByTitle" remain empty in the merged PDF page.
Does anyone have an idea how I can ensure that the contents of the form fields are retained when merging the pages?
Thanks in advance for your help! 

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Skandinavier Members Profile Find Members Posts Beginner Joined: 27 Nov 20 Status: Offline Points: 9	Post Options Post Reply Quote Skandinavier Report Post Thanks(0) Quote Reply Topic: Merging PDF Pages: Empty FormFields Posted: 20 Jan 25 at 7:20PM
	Hi everyone, I’m working on merging two or more PDF pages into a single page using the "DrawCapturedPage" function. This works fine overall, but I’ve run into a problem: The form fields that I previously filled using "SetFormFieldValueByTitle" remain empty in the merged PDF page. Does anyone have an idea how I can ensure that the contents of the form fields are retained when merging the pages? Thanks in advance for your help!

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3529	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 20 Jan 25 at 11:17PM
	Hi :) It's necessary that each form field has a unique name. If you put several pages with form fields on a new single page you should have an eye on this fact if you don't want to run into problems. Another point: What type of form fields you're using? Acro or xfa? QuickPDF doesn't offer much support using xfa.
	Cheers, Ingo

Skandinavier Members Profile Find Members Posts Beginner Joined: 27 Nov 20 Status: Offline Points: 9	Post Options Post Reply Quote Skandinavier Report Post Thanks(0) Quote Reply Posted: 21 Jan 25 at 10:18AM
	Hi Ingo, Thank you for your answer. It doesn't work even with a single field (I tested it to rule out potential issues with duplicate names). The form was originally created with LibreOffice. How can I find out the type of the form fields? I am using the DebenuPDFLibraryDLL1811. If merging the pages doesn't work this way, I’m considering how to place all fields on one page and delete the unnecessary ones before saving/printing. Greetings

noramila Members Profile Find Members Posts Beginner Joined: 29 Aug 23 Location: India Status: Offline Points: 8	Post Options Post Reply Quote noramila Report Post Thanks(0) Quote Reply Posted: 23 Jan 25 at 1:17PM
	Hi @Skandinavier, Try flattening the form fields (turning them into static content) before merging. This should keep the filled values. You can check if the fields are AcroForm or XFA using Adobe Acrobat. If flattening doesn’t work, copy the fields to a new page first.

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3529	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 23 Jan 25 at 9:23PM
	With //... if (QP.GetXFAFormFieldCount > 0) or (QP.FormFieldCount > 0) then... //... you can check if there are acro form fields or xfa form fields.
	Cheers, Ingo

noramila Members Profile Find Members Posts Beginner Joined: 29 Aug 23 Location: India Status: Offline Points: 8	Post Options Post Reply Quote noramila Report Post Thanks(0) Quote Reply Posted: 24 Jan 25 at 12:19PM
	Thankyou For the info.

Skandinavier Members Profile Find Members Posts Beginner Joined: 27 Nov 20 Status: Offline Points: 9	Post Options Post Reply Quote Skandinavier Report Post Thanks(0) Quote Reply Posted: 31 Jan 25 at 9:57AM
	Hello everyone, The fields are AcroForm. I choose to define all possible fields and remove the unnecessary ones before saving. However, I'm encountering a strange issue: When generating the document, I end up with the first page repeated three times—although the same code works perfectly fine with a different template. Could someone take a look at the code below and help me understand why this is happening? Dim fileName As String = "D:\....\...\Template.pdf" Dim Final_Doc As Integer Dim Used_Doc As Integer Call QP.LoadFromFile(fileName, "") '1. Page Call QP.SetFormFieldValueByTitle("Titel", "First Page") Final_Doc = QP.SelectedDocument() '2. Page Call QP.LoadFromFile(fileName, "") Call QP.SetFormFieldValueByTitle("Titel", "Second Page") Used_Doc = QP.SelectedDocument() QP.SelectDocument(Final_Doc) QP.MergeDocument(Used_Doc) '3. Page Call QP.LoadFromFile(fileName, "") Call QP.SetFormFieldValueByTitle("Titel", "Third Page") Used_Doc = QP.SelectedDocument() QP.SelectDocument(Final_Doc) QP.MergeDocument(Used_Doc) Call QP.SaveToFile("D:\....\...\Result.pdf") ' Remove document from memory QP.RemoveDocument(Final_Doc) Thanks in advance!

Skandinavier Members Profile Find Members Posts Beginner Joined: 27 Nov 20 Status: Offline Points: 9	Post Options Post Reply Quote Skandinavier Report Post Thanks(0) Quote Reply Posted: 03 Feb 25 at 2:38PM
	I copied the template using Adobe Reader. With this template, I achieve the desired result with the above code, namely pages 1–3. PDFs truly are a riddle wrapped in a mystery inside an enigma (W. Churchill).