Content Specifications - Images, Videos, and Character Counts

Image Ratios

In general, an image with a 2:1 landscape ratio (800 pixels wide x 400 pixels tall) will tend to look the best across endpoints (such as email, web, mobile, or content amplifier). More details in this article for optimizing image appearance.

File Size and Formats

Image Files

For post images, we support image files in JPG or PNG format up to 5 MB. Please ensure your file is smaller than 5 MB for a successful upload, but we do recommend a minimum height and width of 400 pixels.

GIF Files

Generally, you can upload or insert GIF files wherever you can upload or insert image files. We have found that GIF files embedded in the body of article posts tend to work across the platforms (Studio, web experience, mobile app). However, we have found that GIF files that are the header image of a post fail to load for users in their feed. Therefore, due to a combination of file sizes and network issues, we cannot assure that a GIF will load for all users. 

Videos

When uploading a video, the file should be smaller than 500 MB and in MOV, MP4, or AVI format. If you can optimize or compress the video to a smaller size, that will make the upload and processing go faster. Please keep your mobile app users in mind - larger files will be hard to load over some data connections.

Character Count Limits

As users are on a variety of devices, your users will all have different screen sizes. Both Firstup and the platform (iPhone, Android, web browser) will wrap text or hide text behind an ellipses (“...”). We have features such as “... more” so that users can expand the text. However, if you would like to minimize the appearance of “...” as much as possible, this table outlines the number of characters that fit on most screens: