--- title: Custom background description: In this article, you’ll learn what custom background images are and how to use them. --- [Skip to content](https://resources.gleanin.com/knowledge/custom-background#main-content) [![03\_Gleanin\_Logo\_RGB\_Violet](https://resources.gleanin.com/hs-fs/hubfs/03_Gleanin_Logo_RGB_Violet.png?width=129&height=40&name=03_Gleanin_Logo_RGB_Violet.png)](https://gleanin.com/) Open main navigation Close main navigation Welcome to the Gleanin help centre, search for an answer or navigate via the sections below - There are no suggestions because the search field is empty. 1. [Help Center](https://resources.gleanin.com/knowledge?hsLang=en) 2. [Gleanin Classic](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en) 3. [Asset creation](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#asset-creation) # Custom background ## In this article, you’ll learn what custom background images are and how to use them. **[Technical requirements](https://resources.gleanin.com/knowledge/custom-background#technical)** **[Backgrounds for Instagram sharing](https://resources.gleanin.com/knowledge/custom-background#instagram)** **[Attendee campaign](https://resources.gleanin.com/knowledge/custom-background#attendee-campaign-style)** **[Speakers & exhibitors campaigns](https://resources.gleanin.com/knowledge/custom-background#speaker-exhib-style)** [**Design & styling**](https://resources.gleanin.com/knowledge/custom-background#design-styling) ### **Technical requirements** #### **Dimensions** Depending on the social media platform that you want to choose, you will need to make sure that the custom background size is right for it: - Landscape (LinkedIn, Facebook & WhatsApp) - 1200 x 628 px - Portrait (Instagram) - 1080 x 1350 px - Story (Instagram) - 1080 x 1920 px #### **File types** Speakers, Exhibitors and Attendee campaigns (both landscape and square): - jpeg (max. 4MB) - png (max. 4MB) - webp (max. 4MB) Attendee campaign (landscape only - Instagram & Facebook don't support .gif files) - GIF (max. 4MB) Note that it's important to ensure that all text is visible on the first frame, as this will be displayed on Facebook due to the restrictions mentioned. ### **Instagram templates** Please note that if you plan to share your content on Instagram, you must upload separate files for the specified dimensions, as our system does not automatically resize or crop landscape images to fit a square format, and vice versa. ### **Instagram story 16:9 template** To add the Instagram Story template to your campaign, enable it in the Channel section of the dashboard. For existing campaigns, you will need to create a completely new theme with the story option selected. ![Screenshot 2025-06-25 at 07.59.29](https://resources.gleanin.com/hs-fs/hubfs/Screenshot%202025-06-25%20at%2007.59.29.png?width=670&height=761&name=Screenshot%202025-06-25%20at%2007.59.29.png) #### **3:4 grid preview** For Instagram's 3:4 aspect ratio, we have adjusted the default positioning of elements on the portrait templates to ensure that nothing is cut off in the preview. To view how your portrait template will appear in the grid ratio, toggle the **Show Instagram 3:4 crop area** option on the theme screen. ![Screenshot 2025-06-25 at 09.36.03](https://resources.gleanin.com/hs-fs/hubfs/Screenshot%202025-06-25%20at%2009.36.03.png?width=670&height=578&name=Screenshot%202025-06-25%20at%2009.36.03.png) When designing the template for the **attendee campaign** **custom background-only** option, please remember to ensure that your content is **centred within the template** and that you leave a **20px margin** on both the **left and right** sides of the content area. This prevents content from being cut off when displayed in the **profile grid**. ### **Attendee campaign** If you are using an Attendee campaign to spread the word about the event, you can completely bypass using any of the predefined elements in the Gleanin Theme builder and just use your fully designed custom background. Please make sure that the size is correct for the social media used and that you have them in the correct size and format: .jpg, .png and .gif (for landscape backgrounds only). If you opt for Quick Share on LinkedIn, be sure to follow the advice in [this guide](https://resources.gleanin.com/knowledge/linkedin-sharing?hsLang=en#best-practice) when creating your background design for optimal results. To use the custom background only option: 1. Go to your **Campaign** dashboard. 2. Click on the **Theme** tab 3. Click on the **pencil icon** and choose **Theme** from the edit menu 4. On the theme design menu, expand **Custom background** and tick the **Use only background image** box. ![Screenshot 2025-06-25 at 08.14.23](https://resources.gleanin.com/hs-fs/hubfs/Screenshot%202025-06-25%20at%2008.14.23.png?width=655&height=706&name=Screenshot%202025-06-25%20at%2008.14.23.png) 5. This will hide all the extra system elements from the template. If you want to use any of the Gleanin elements on your design, please visit the article [here](https://resources.gleanin.com/knowledge/how-should-i-design-my-custom-backgrounds-for-attendee-campaigns?hsLang=en). ### **Speaker & Exhibitor campaigns** It's possible to use a customised background for the speaker & exhibitor campaigns. In both cases, you will need to design that background around Gleanin fields, which will be added to your image; however, you can make that easier by hiding those elements or not uploading your logo if you already have that in your background. If you opt for Quick Share on LinkedIn, be sure to follow the advice in [this guide](https://resources.gleanin.com/knowledge/linkedin-sharing?hsLang=en#best-practice) when creating your background design for optimal results. If you want to hide Gleanin elements from your template: 1. Go to your **Campaign dashboard**. 2. Click on the **Theme** tab 3. Click on the **pencil icon** and choose **Theme** from the edit menu 4. On the Theme design menu, you can simply **click** on the **eye icon** to **hide** the Gleanin elements. ![Screenshot 2025-06-25 at 08.15.44](https://resources.gleanin.com/hs-fs/hubfs/Screenshot%202025-06-25%20at%2008.15.44.png?width=655&height=489&name=Screenshot%202025-06-25%20at%2008.15.44.png) 5. If the element has been hidden, the **eye icon** will become **greyed out** and the element will be hidden from the preview on the right-hand side.![Screenshot 2025-06-25 at 08.16.38](https://resources.gleanin.com/hs-fs/hubfs/Screenshot%202025-06-25%20at%2008.16.38.png?width=655&height=538&name=Screenshot%202025-06-25%20at%2008.16.38.png) 6. To **bring the element back** onto the template, you can just **click** on the **greyed-out eye icon** again. Please note that we are currently in the process of updating our articles and templates to incorporate new portrait and story formats. We appreciate your patience during this transition, and we will provide the updated sizes and dimensions here shortly. If your designs are more custom or you need templates and grids for your designers, please see this article for the [speaker campaign](https://resources.gleanin.com/knowledge/how-should-i-design-my-custom-backgrounds-for-speaker-campaigns?hsLang=en) and this one for the [exhibitor](https://resources.gleanin.com/knowledge/how-should-i-design-my-custom-backgrounds-for-exhibitor-campaigns?hsLang=en) one. ### **Design & styling** #### **Plain & gradient backgrounds** When using Gleanin Theme to design your images, you will be able to use our predefined elements like headshot image, logo, title, etc., and if you are using a plain colour or gradient background with no elements on it, regardless of the campaign type, you can just upload that image without any extra caution. We suggest using either an overlay or a dimmer colour to have a nice contrast with the elements and text. #### **General design tips** If you want to find more information on the general design rules and requirements, please see below the list of articles that can help you create beautiful and effective assets: [Customising your templates with a template editor](https://resources.gleanin.com/knowledge/how-to-use-single-template-editor?hsLang=en) [Changing and uploading (PRO only) fonts](https://resources.gleanin.com/knowledge/how-can-i-change-the-font-on-my-template?hsLang=en) - [Gleanin](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#main-content) - [Asset hub](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#asset-hub) - [Attendee campaign](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#attendee-campaign) - [Asset creation](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#asset-creation) - [Upload and data](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#upload-and-data) - [Results](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#results) - [Advanced features](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#advanced-features) - [Managing your account](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#managing-your-account) - [Integrations | API & MCP](https://resources.gleanin.com/knowledge/gleanin?hsLang=en#integrations-api-mcp) - [Gleanin Classic](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#main-content) - [Managing your account](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#managing-your-account) - [Running your campaign](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#running-your-campaign) - [Upload and data](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#upload-and-data) - [Asset creation](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#asset-creation) - [Reporting](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#reporting) - [Advanced features](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#advanced-features) - [Tutorials](https://resources.gleanin.com/knowledge/gleanin-classic?hsLang=en#tutorials) - [Data integrations](https://resources.gleanin.com/knowledge/data-integrations?hsLang=en) - [Common questions](https://resources.gleanin.com/knowledge/common-questions?hsLang=en) - [Best practice](https://resources.gleanin.com/knowledge/best-practice?hsLang=en#main-content) - [Gleanin Classic](https://resources.gleanin.com/knowledge/best-practice?hsLang=en#gleanin-classic) - [Product updates](https://resources.gleanin.com/knowledge/product-updates?hsLang=en#main-content) - [Gleanin Classic & legacy updates](https://resources.gleanin.com/knowledge/product-updates?hsLang=en#gleanin-classic-legacy-updates) [![03\_Gleanin\_Logo\_RGB\_Violet](https://resources.gleanin.com/hs-fs/hubfs/03_Gleanin_Logo_RGB_Violet.png?width=120&height=37&name=03_Gleanin_Logo_RGB_Violet.png "03_Gleanin_Logo_RGB_Violet")](https://gleanin.com/) Copyright © 2026 Gleanin