# Custom Rubber Stamp

**URL:** <https://pdfjs.community/t/custom-rubber-stamp/110>\
**Category:** Technical Support\
**Created:** [July 3, 2020, 5:57am UTC](https://pdfjs.community/t/custom-rubber-stamp/110 "2020-07-03T05:57:52Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![abhishek11.maurya199](https://avatars.discourse-cdn.com/v4/letter/a/ed655f/32.png) [@abhishek11.maurya199](https://pdfjs.community/u/abhishek11.maurya199)\
**Post date:** [July 7, 2020, 9:42am UTC](https://pdfjs.community/t/custom-rubber-stamp/110/3 "2020-07-07T09:42:38Z")

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Thank you logan for the code, just have small doubt  
that the “Annotations” object is always showing “undefined” when  
I try to load it in “/samples/realtime-collaboration.js” after below line:  
const { docViewer, annotManager } = instance;

Could you please help me by mentioning where i can  
put the code snippet provided by you or how to remove this “undefined error”

Regards

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