# How to bind multiple xfdfString values as annotation in PDF

**URL:** https://pdfjs.community/t/how-to-bind-multiple-xfdfstring-values-as-annotation-in-pdf/2038
**Category:** Technical Support
**Created:** [September 16, 2022, 5:37pm UTC](https://pdfjs.community/t/how-to-bind-multiple-xfdfstring-values-as-annotation-in-pdf/2038 "2022-09-16T17:37:06Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![kkim](https://avatars.discourse-cdn.com/v4/letter/k/3ab097/32.png) [@kkim](https://pdfjs.community/u/kkim)
#### Post date: [September 16, 2022, 8:08pm UTC](https://pdfjs.community/t/how-to-bind-multiple-xfdfstring-values-as-annotation-in-pdf/2038/4 "2022-09-16T20:08:28Z")

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Hello rakshitha\_r,

Continuing the conversation from [How to render xfdf back into pdf - #21 by rakshitha\_r](https://pdfjs.community/t/how-to-render-xfdf-back-into-pdf/2026/21)

Some questions regarding your issue:

1. Before you click your checkbox, do you have any annotations on the page?
2. When you click your checkbox, are you calling importAnnotations()?
3. When you are adding the annotations with importAnnotations(), are any of them duplicates to ones that are on the page before the import?

Best Regards,  
Kevin Kim  
Web Development Support Engineer  
PDFTron Systems, Inc.

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