# Set default as Fit to width

**URL:** <https://pdfjs.community/t/set-default-as-fit-to-width/639>\
**Category:** Technical Support\
**Created:** [March 18, 2021, 6:08am UTC](https://pdfjs.community/t/set-default-as-fit-to-width/639 "2021-03-18T06:08:51Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Steven](https://avatars.discourse-cdn.com/v4/letter/s/94ad74/32.png) [@Steven](https://pdfjs.community/u/Steven)\
**Post date:** [March 18, 2021, 6:08am UTC](https://pdfjs.community/t/set-default-as-fit-to-width/639/1 "2021-03-18T06:08:51Z")

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Hi,

We want to set default as Fit to width option because we want show PDF in full view. Check attachment image.

Thanks.

 ![Screenshot_9](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/1X/57fa351862d98093cb923c2100fa98f8a8f29a21.png)

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/1X/ffbcd25c7d423db8d5acd5db201c272f4db306dd.png) [@system](https://pdfjs.community/u/system)\
**Post date:** [March 18, 2021, 6:08am UTC](https://pdfjs.community/t/set-default-as-fit-to-width/639/2 "2021-03-18T06:08:52Z")

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**Hello, I’m an automated tech support bot.**

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

- [CoreControls.Math.Rect - fitTo(rect)](https://pdfjs.express/api/CoreControls.Math.Rect.html#fitTo__anchor)
- [Lower level document APIs](https://pdfjs.express/documentation/learn-more/advanced/low-level-api)
- [How to customize viewer - What option should I choose](https://pdfjs.express/documentation/ui-customization/customizing-setup#what-option-should-i-choose)
- [Create image stamp annotations in PDF.js Express](https://pdfjs.express/documentation/annotation/create-annotation-stamp)
- [CoreControls.Document - insertBlankPages(insertBeforeThesePages, width, height)](https://pdfjs.express/api/CoreControls.Document.html#insertBlankPages__anchor)

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<div class="post-metadata">

**Author:** ![Logan](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/logan/32/13_2.png) [@Logan](https://pdfjs.community/u/Logan)\
**Post date:** [March 18, 2021, 2:40pm UTC](https://pdfjs.community/t/set-default-as-fit-to-width/639/3 "2021-03-18T14:40:58Z")

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Hey!

You can just call `setFitMode`

```javascript
instance.setFitMode(instance.FitMode.FitWidth)

```

Thanks,  
Logan

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<div class="post-metadata">

**Author:** ![Steven](https://avatars.discourse-cdn.com/v4/letter/s/94ad74/32.png) [@Steven](https://pdfjs.community/u/Steven)\
**Post date:** [March 19, 2021, 5:28am UTC](https://pdfjs.community/t/set-default-as-fit-to-width/639/4 "2021-03-19T05:28:45Z")

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Thanks for your reply. It work for me.

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<div class="post-metadata">

**Author:** ![Logan](https://yyz1.discourse-cdn.com/flex031/user_avatar/pdfjs.community/logan/32/13_2.png) [@Logan](https://pdfjs.community/u/Logan)\
**Post date:** [March 22, 2021, 9:27pm UTC](https://pdfjs.community/t/set-default-as-fit-to-width/639/5 "2021-03-22T21:27:06Z")

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