---
url: https://docs.oakmega.com/en/guide/asset-specs/web-tools.md
description: >-
  Before you prepare images for approved pages, forms, passes and the content
  editor, or preview thumbnails for deep links and routing links, check here for
  the accepted formats, file size limits and recommended sizes, and how an image
  is displayed when its size doesn't match.
---

## Approved pages

| Asset | Format | Max file size | Recommended size | Display rules and limits |
|---|---|---|---|---|
| Fixed Top Bar logo | JPG, JPEG, PNG | 10 MB | 600 x 600px | If the size doesn't match, the image is scaled proportionally and centered, with the extra space left blank |
| Preview thumbnail | JPG, JPEG, PNG | 10 MB | 1200 x 630px | — |

## Forms

| Asset | Format | Max file size | Recommended size | Display rules and limits |
|---|---|---|---|---|
| Option image for choice questions | JPG, JPEG, PNG | 10 MB | 600 x 600px | Cropped automatically to 1:1 if the size doesn't match; only **Block Style** options can have images |
| Preview thumbnail | JPG, JPEG, PNG | 10 MB | 1200 x 630px | — |

## Passes

| Asset | Format | Max file size | Recommended size | Display rules and limits |
|---|---|---|---|---|
| Pass image | JPG, JPEG, PNG | 10 MB | 1200 x 900px | Pass cards in the Wallet are shown at 4:3; if the size doesn't match, the image is scaled proportionally and centered, with the extra space left blank. The claim page shows the whole image at its original ratio |
| Wallet banner | JPG, JPEG, PNG | 10 MB | 1400 x 300px | If the size doesn't match, the image is scaled proportionally and centered, with the extra space left blank |
| Wallet logo | JPG, JPEG, PNG | 10 MB | 600 x 600px | Cropped automatically to 1:1 if the size doesn't match, and shown as a circle |
| Promo code upload | CSV | 10 MB | — | — |

## Content editor

The content editor in web-based tools such as approved pages and forms accepts the following assets.

| Asset | Format | Max file size | Recommended size | Display rules and limits |
|---|---|---|---|---|
| Image | JPG, JPEG, PNG | 10 MB | 1920 x 1080px | The default image shared by all devices |
| Switch Image for Mobile Version | JPG, JPEG, PNG | 10 MB | 1080 x 1440px | Appears only after you turn on **Switch Image for Mobile Version**; phones show this image instead |
| Video | MP4, WMV, MOV | 200 MB | 1920 x 1080px | — |
| PDF (Upload File) | PDF | 100 MB | — | — |
| PDF (Embed URL) | PDF | 100 MB | — | — |
| File | Any format | 100 MB | — | A file for visitors to download |

## Link preview thumbnails

The preview thumbnail shown when a deep link, New/Existing Friend Link or Tag Routing Link is shared has the same specs for all three.

| Asset | Format | Max file size | Recommended size | Display rules and limits |
|---|---|---|---|---|
| Deep link – Link Preview Thumbnail | JPG, JPEG, PNG | 10 MB | 1200 x 630px | Facebook: shows the whole image at its original ratioLINE, Instagram: cropped to 1:1 |
| New/Existing Friend Link – Link Preview Thumbnail | JPG, JPEG, PNG | 10 MB | 1200 x 630px | Facebook: shows the whole image at its original ratioLINE, Instagram: cropped to 1:1 |
| Tag Routing Link – Link Preview Thumbnail | JPG, JPEG, PNG | 10 MB | 1200 x 630px | Facebook: shows the whole image at its original ratioLINE, Instagram: cropped to 1:1 |

## Next steps

* [Messages and Richmenus](https://docs.oakmega.com/en/guide/asset-specs/messages.md)
* [Account settings and import files](https://docs.oakmega.com/en/guide/asset-specs/account-and-import.md)