Behind FitShift
Where FitShift’s image sizes come from
Which sizes have a source, which are simply export options, and what FitShift does not check.
FitShift’s presets save you from typing in a width and height. They don’t all represent a platform requirement. Here’s the difference.
Where the sizes come from
The Instagram Post preset makes a 1080 × 1080 image. That’s a square export option. It isn’t a claim that Instagram requires every post to be square. If you have a portrait photo, cropping it to that preset means giving up some of the picture.
A source link gives you more context. FitShift’s YouTube banner preset, for example, points to YouTube’s channel-branding guidance. That page discusses the banner dimensions and where to put text and logos so they remain visible on different screens. The dimensions alone wouldn’t tell you that.
A preset without a verified size reference is labeled “FitShift export option.” We chose that canvas; we aren’t saying the platform recommends it. Source-backed entries show what the reference supports and when we checked it. See the source labels.
What the checks cover
The automated checks cover crop calculations, preset data, filenames, and page links. They don’t test whether an upload is accepted by a social network or government agency. A source-check date is not a guarantee that the instructions are still current when you use the tool.
The export code also has a useful failure case. If a JPEG won’t fit a preset’s file-size limit, FitShift tries lower JPEG quality while keeping the requested dimensions. If it still can’t fit, it reports the problem. Otherwise you could download a smaller image than you asked for without realizing it.
Before you use the download
Open the exported image. Check the edges for cut-off text or a person who has disappeared from a group photo. If you enlarged a small original, check for blur too. Resizing can’t bring back missing detail.
Then look at the destination’s preview. A banner can have the correct dimensions and still lose its text when a mobile layout crops the sides.
Government photos need extra care: follow the current instructions for your specific application. FitShift can help with a crop and file size, but it cannot check identity, pose, lighting, recency, or whether the agency will accept the photo.