# Rubber stamp behavior between v8.2.0 and 8.4.0

**URL:** <https://pdfjs.community/t/rubber-stamp-behavior-between-v8-2-0-and-8-4-0/1876>\
**Category:** Bug Reports\
**Created:** [July 15, 2022, 12:49am UTC](https://pdfjs.community/t/rubber-stamp-behavior-between-v8-2-0-and-8-4-0/1876 "2022-07-15T00:49:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![adil](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/adil/32/857_2.png) [@adil](https://pdfjs.community/u/adil)\
**Post date:** [July 15, 2022, 12:49am UTC](https://pdfjs.community/t/rubber-stamp-behavior-between-v8-2-0-and-8-4-0/1876/1 "2022-07-15T00:49:53Z")

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Hi  
Thank you for your hard work in bringing us such a great software.  
I’m using pdf.js Express version 8.4.0 and I’m getting a different behavior comparing to version 8.2.0.  
When selecting rubber stamp tool, by default in v8.4.0, I get a rubber stamp to put in the page without selecting it from the dropdown, in the v8.2.0, I need to choose from the dropdown a stamp before and then I can put it on the document and this is the behavior that I need.

1. Is this an expected behavior or a bug?
2. if is this normal how to get it working as it was in v8.2.0 please?

check these recording for reference

- [8.4.0 video](https://www.loom.com/share/07ae3530ab554d42bb601514b157f4f2)
- [8.2.0 video](https://www.loom.com/share/6c311f0dbbd84a2f90ed97bd59e9164f)

Thanks for your support.

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**Author:** ![tgordon](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tgordon](https://pdfjs.community/u/tgordon)\
**Post date:** [July 15, 2022, 6:48pm UTC](https://pdfjs.community/t/rubber-stamp-behavior-between-v8-2-0-and-8-4-0/1876/3 "2022-07-15T18:48:28Z")

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Hello adil,

This is the expected behaviour of the tool, however I have created a task in our backlog to implement an API to enable/disable auto selection of the default stamp

Best regards,  
Tyler Gordon  
Web Development Support Engineer  
PDFTron

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**Author:** ![adil](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/adil/32/857_2.png) [@adil](https://pdfjs.community/u/adil)\
**Post date:** [July 15, 2022, 9:36pm UTC](https://pdfjs.community/t/rubber-stamp-behavior-between-v8-2-0-and-8-4-0/1876/4 "2022-07-15T21:36:03Z")

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Hi @tgordon

Many thanks for taking in account my inquiry, in fact, in my app, I need to have only one rubber stamp type in a document, if present I remove this stamp from the selection dropdown, to prevent the user from putting it twice or more, keeping a default stamp selected give the user the possibility to add more than one of the last used stamp.  
So giving the the possibility to enable/disable auto selection will be a good solution for my case.

Regards.

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**Author:** ![tgordon](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tgordon](https://pdfjs.community/u/tgordon)\
**Post date:** [July 18, 2022, 4:44pm UTC](https://pdfjs.community/t/rubber-stamp-behavior-between-v8-2-0-and-8-4-0/1876/5 "2022-07-18T16:44:21Z")

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Hello adil,

As a workaround, you could listen to when the signature is placed, then deleting the signature from the list of saved signatures. This would remove the selected signature, but they wouldnt be able to place it multiple times.

Best regards,  
Tyler Gordon  
Web Development Support Engineer  
PDFTron

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<div class="post-metadata">

**Author:** ![adil](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/adil/32/857_2.png) [@adil](https://pdfjs.community/u/adil)\
**Post date:** [July 20, 2022, 8:33pm UTC](https://pdfjs.community/t/rubber-stamp-behavior-between-v8-2-0-and-8-4-0/1876/6 "2022-07-20T20:33:58Z")

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Hello @tgordon  
I’ll give it a try.  
Thanks.