# Invalid license key while trying to merge the pdf file with annotations

**URL:** https://pdfjs.community/t/invalid-license-key-while-trying-to-merge-the-pdf-file-with-annotations/2807
**Category:** Technical Support
**Created:** [August 24, 2023, 2:26pm UTC](https://pdfjs.community/t/invalid-license-key-while-trying-to-merge-the-pdf-file-with-annotations/2807 "2023-08-24T14:26:56Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![beatriz.patriota](https://avatars.discourse-cdn.com/v4/letter/b/db5fbb/32.png) [@beatriz.patriota](https://pdfjs.community/u/beatriz.patriota)
#### Post date: [August 24, 2023, 2:26pm UTC](https://pdfjs.community/t/invalid-license-key-while-trying-to-merge-the-pdf-file-with-annotations/2807/1 "2023-08-24T14:26:56Z")

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**Which product are you using?**  
PDF.js Express Plus

**PDF.js Express Version**

1. Build: “Ni8xNi8yMDIzfDhhZjQyYTgwOTU=”
2. Core version: “8.7.4”
3. Full API: false
4. UI version: “8.7.0”
5. WebViewer Server: false
6. webviewer.min.js: “8.7.4”

**Detailed description of issue**  
 ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/e/e3e42692c392a1e3b0b10e1ad20b8d4628f9d818.png)  
 ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/1/1faf0d0f156753725defc46bb2e9ad8c92e3c701.png)

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/5/5d62c6c8973e9d6a2ea6b31510f214ad574e24f2.png)

Invalid license key while trying to merge the pdf file with annotations.

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<div class="post-metadata">

### Author: ![tgordon](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tgordon](https://pdfjs.community/u/tgordon)
#### Post date: [August 24, 2023, 8:20pm UTC](https://pdfjs.community/t/invalid-license-key-while-trying-to-merge-the-pdf-file-with-annotations/2807/3 "2023-08-24T20:20:03Z")

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Hello beatriz.patriota,

Our support forum says you have a view-only key. Can you confirm this is true?  
If so, then that means you would not have access to the merge API.

Best regards,  
Tyler

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<div class="post-metadata">

### Author: ![beatriz.patriota](https://avatars.discourse-cdn.com/v4/letter/b/db5fbb/32.png) [@beatriz.patriota](https://pdfjs.community/u/beatriz.patriota)
#### Post date: [August 24, 2023, 10:52pm UTC](https://pdfjs.community/t/invalid-license-key-while-trying-to-merge-the-pdf-file-with-annotations/2807/4 "2023-08-24T22:52:45Z")

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Is another key, from my work account, but it’s also view only, thanks!

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<div class="post-metadata">

### Author: ![karthikrajan](https://avatars.discourse-cdn.com/v4/letter/k/94ad74/32.png) [@karthikrajan](https://pdfjs.community/u/karthikrajan)
#### Post date: [October 10, 2024, 12:34pm UTC](https://pdfjs.community/t/invalid-license-key-while-trying-to-merge-the-pdf-file-with-annotations/2807/5 "2024-10-10T12:34:08Z")

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Hi I am facing the same problem. How can I get a license key to merge annotations with PDF. Without key the watermark is displayed.

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<div class="post-metadata">

### Author: ![kkim](https://avatars.discourse-cdn.com/v4/letter/k/3ab097/32.png) [@kkim](https://pdfjs.community/u/kkim)
#### Post date: [October 18, 2024, 4:40pm UTC](https://pdfjs.community/t/invalid-license-key-while-trying-to-merge-the-pdf-file-with-annotations/2807/6 "2024-10-18T16:40:57Z")

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If you would like to use the merge API without a watermark, you will need to purchase a license, this can be done in the dashboard: [PDF.js Express](https://pdfjs.express/profile)

Alternatively, you could try the WebViewer product if it fits your use-case:

> **[Apryse SDK Feature Chart](https://apryse.com/feature-chart)**
>
> Apryse

Best regards,  
Kevin Kim