# Unable to upload image for preview content **URL:** \ **Category:** App Marketplace\ **Created:** [April 23, 2020, 2:32am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530 "2020-04-23T02:32:33Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![speakwrite](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@speakwrite](https://devforum.zoom.us/u/speakwrite)\ **Post date:** [April 23, 2020, 2:32am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/1 "2020-04-23T02:32:33Z")
**Description** I get an error when trying to upload a image that is 1200x780 **Error** Error is upload failed, try again. **Additional context** Add any other context about the problem here. ![Capture.PNG](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/3/36848952eaf57be641a5e8b2a6edd7159cc73758.jpeg) ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [April 23, 2020, 5:48pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/2 "2020-04-23T17:48:19Z")
Hey @speakwrite, What error are you getting? Only JPG/GIF/JPEG/PNG images and MP4 videos are supported. Image resolution must be 1200 by 780 pixels. The maximum video size is 40 MB. Please share screenshot of error. Thanks, Tommy ---
**Author:** ![speakwrite](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@speakwrite](https://devforum.zoom.us/u/speakwrite)\ **Post date:** [April 23, 2020, 6:10pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/3 "2020-04-23T18:10:31Z")
![error](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/5/5e766574d55be4bab1f298b01d1ee90458608f8c.png) ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [April 24, 2020, 4:17pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/4 "2020-04-24T16:17:51Z")
Hey @speakwrite, What is the name of your app? Thanks, Tommy ---
**Author:** ![speakwrite](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@speakwrite](https://devforum.zoom.us/u/speakwrite)\ **Post date:** [April 24, 2020, 4:33pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/5 "2020-04-24T16:33:56Z")
“Speakwrite” is the name of the app. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [April 27, 2020, 5:54pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/6 "2020-04-27T17:54:03Z")
Hey @speakwrite, I just tested uploading an image to your app and it worked. Please try again. For reference, here is the test image I used that meets the format validation: ![_-zSsRK_KTmug6a1o-DPQQQ_KdYKjnimT4KPd8KKdQt9FQ_app_Thil2onZQluzZYv6Dh3iQA_BFk7pgmDQnuwnUYcLfvKlA](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/6/663d8e3b970ab1cc48862158826e3ce36420dc4f.jpeg) (I have since removed the photo from your app images.) Thanks, Tommy ---
**Author:** ![speakwrite](https://avatars.discourse-cdn.com/v4/letter/s/919ad9/32.png) [@speakwrite](https://devforum.zoom.us/u/speakwrite)\ **Post date:** [April 27, 2020, 6:02pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/7 "2020-04-27T18:02:44Z")
ok thx i’ll give it a try soon ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [April 30, 2020, 4:03pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/8 "2020-04-30T16:03:43Z")
Thanks @speakwrite, Please let me know if the issue persists. Thanks, Tommy ---
**Author:** ![kju](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kju/32/2092_2.png) [@kju](https://devforum.zoom.us/u/kju)\ **Post date:** [August 5, 2020, 3:45pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/9 "2020-08-05T15:45:30Z")
@tommy I have the same problem. My app is `Flouu Telework`. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 6, 2020, 4:56pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/10 "2020-08-06T16:56:17Z")
Hey @kju, Please share a screenshot of the error. Thanks, Tommy ---
**Author:** ![kju](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kju/32/2092_2.png) [@kju](https://devforum.zoom.us/u/kju)\ **Post date:** [August 7, 2020, 2:13am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/11 "2020-08-07T02:13:05Z")
@tommy Please help thank you. [Screenshot from 2020-08-07 11-11-32|690x388](https://devforum.zoom.us/uploads/short-url/xz7aBFhNVVphAhBcg2XAe6TEBoh.png) ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 7, 2020, 5:15pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/12 "2020-08-07T17:15:14Z")
Hey @kju, Can you give me the images you want to upload and I will try to upload them for you. Thanks, Tommy ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 10, 2020, 1:51am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/14 "2020-08-10T01:51:01Z")
Hey @kju, I was able to upload the image for you. Let me know if you need anything else. 🙂 Thanks, Tommy ---
**Author:** ![kju](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kju/32/2092_2.png) [@kju](https://devforum.zoom.us/u/kju)\ **Post date:** [August 10, 2020, 3:48am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/15 "2020-08-10T03:48:53Z")
Hi @tommy Thank you. But I still can not upload other images. I try to create new app and also can not upload images. Could you fix it generally? Example. ![detail05_1200x780](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/9/992d74d300cab9689500f8163d41217100e3719f.png) ---
**Author:** ![kju](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kju/32/2092_2.png) [@kju](https://devforum.zoom.us/u/kju)\ **Post date:** [August 10, 2020, 3:56am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/16 "2020-08-10T03:56:07Z")
I got 403 Error: Request URL: [https://zoom-marketplace-apps.s3.amazonaws.com/](https://zoom-marketplace-apps.s3.amazonaws.com/) Request Method: POST Status Code: 403 Forbidden Remote Address: [64:ff9b::34d8:5d1b]:443 Referrer Policy: no-referrer-when-downgrade And response: ``` AccessDeniedAccess Denied5DCF1EE73C44E330a6PHSAEPBihbcIIfe7ayolX1tnvLkYOvW6oxNybkQZFRSWYNkcj50aTIWBFWkBVpiEq05z+/PPE= ``` ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [August 10, 2020, 7:33am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/17 "2020-08-10T07:33:53Z")
Hey @kju, Thanks for the additional details. Our engineering team is investigating the issue. I will get back to you once it is resolved. (ZOOM-185116) -Tommy ---
**Author:** ![taikonautzero](https://avatars.discourse-cdn.com/v4/letter/t/d2c977/32.png) [@taikonautzero](https://devforum.zoom.us/u/taikonautzero)\ **Post date:** [October 8, 2020, 3:46pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/18 "2020-10-08T15:46:40Z")
Hi Tommy, I encountered the upload file issue today, I’m getting this same 403 Forbidden error. The files are correctly sized and I’ve tried both PNG and JPG formats. Out of interest, where do I go to track issues, e.g. ZOOM-185116? Jason ---
**Author:** ![will.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/will.zoom/32/14417_2.png) [@will.zoom](https://devforum.zoom.us/u/will.zoom)\ **Post date:** [October 9, 2020, 3:47pm UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/19 "2020-10-09T15:47:33Z")
Hi @taikonautzero, While we don’t have a public issue tracker—these are internal references, I’ve gone ahead and followed up with our team on this issue. We hope to have an update for you soon. (ZOOM-185116) Best, Will ---
**Author:** ![taikonautzero](https://avatars.discourse-cdn.com/v4/letter/t/d2c977/32.png) [@taikonautzero](https://devforum.zoom.us/u/taikonautzero)\ **Post date:** [October 15, 2020, 9:16am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/20 "2020-10-15T09:16:09Z")
I’ve found the solution to this problem. The file extensions are case sensitive, only lowercased extensions are accepted. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [October 19, 2020, 1:37am UTC](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530/21 "2020-10-19T01:37:04Z")
Hey @taikonautzero, Thanks for sharing the solution! 🙂 I will ask our marketplace engineering team to allow upper cased file extensions. -Tommy [Next page](https://devforum.zoom.us/t/unable-to-upload-image-for-preview-content/14530.md?page=2)