How to Mail Merge PDF to Word Conversion

This article demonstrates a simple example of showing how to Mail Merge on a word document converted from PDF and then save PDF. Using Aspose.Words, executing a simple Mail Merge process on PDF to Words converted file doesn’t work for some cases. The problem occurs because Aspose.PDF does not write actual MERGEFIELDs during converting PDF to DOCX (Word documents). But it can be achieved by converting those static texts to actual MERGEFIELDs and then executing the Mail Merge operation. Please see the following workaround.

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FAQ

1. Q: Why are there no MERGEFIELDs after converting a PDF to DOCX with Aspose.PDF?
   A: Aspose.PDF’s conversion creates plain text runs; it does not generate Word merge fields. Consequently, the resulting DOCX contains static text that cannot be used directly by Aspose.Words MailMerge. You must replace those static texts with actual MERGEFIELDs before running MailMerge.

2. Q: How can I convert the static text in a DOCX obtained from a PDF into real MERGEFIELDs?
   A: Use the HandleMergeFields helper (or a custom IReplacingCallback) to locate placeholder strings in the document and replace each occurrence with a FieldMergeField. After the replacement, the document contains proper merge fields that MailMerge can process.

3. Q: What does the ReplaceEvaluatorFindAndInsertMergefield class do in the example?
   A: It implements IReplacingCallback to intercept a Find/Replace operation, detect a specific placeholder, and insert a new FieldMergeField at that position. This enables dynamic creation of merge fields after the PDF‑to‑DOCX conversion.

4. Q: Can I perform a mail merge directly on a PDF without converting it to Word first?
   A: No. Aspose.Words’ MailMerge works only with Word document formats (DOC, DOCX, etc.). You must first convert the PDF to a Word format, ensure merge fields exist, and then execute the MailMerge operation.

5. Q: Are there any licensing considerations when using Aspose.PDF and Aspose.Words together for this scenario?
   A: Both libraries require valid licenses. Set the license for Aspose.PDF before converting the PDF and set the license for Aspose.Words before performing MailMerge. Without proper licensing, you will encounter evaluation watermarks or functional limitations.