How to auto-convert iPhone photos and videos before sharing to improve compatibility

Learn how to automatically convert pictures to the JPG format and videos to MOV on the fly when you share them via AirDrop or other means on an iPhone or iPad.

Choose format before sharing photos from iPhone

Some devices and apps may lack support for the default file format iOS uses to encode your shot-on-iPhone images and videos. Such files won’t even open on foreign platforms unless converted into the universally compatible JPG file format for images and the H.264 codec for video.

The default shooting format in iOS is HEIF (High Efficiency Image File Format) for photographs and HEVC (High Efficiency Video Coding) with the H.265 codec for videos. These formats produce roughly fifty percent smaller files while retaining the same quality as JPG.

The problem is, they’re unsupported by many older smartphones, tablets, computers, TVs, and other gadgets. To save you from manual conversion, iOS and iPadOS include the option to automatically convert media on the fly, and we show you how.

Automatically convert iPhone media before sharing

1) Open the built-in Photos app, select some pictures or videos, and hit the Share button.

2) Choose Options at the top of the AirDrop sheet.

3) Choose the Most Compatible option.

Choose most compatible format before sharing photos and videos from iPhone

Here’s what these file format options mean:

  • Automatic: Enabled by default, this setting tells iOS to automatically decide the right file format depending on the receiving device, but it rarely works as advertised.
  • Current: Choose this option if you’d like to send the images and videos in their original format.
  • Most Compatible: iOS will convert any HEIF photos and HEVC videos to the more compatible JPG and MOV (H.264) formats on the fly, making them universally viewable on almost any device.

4) After selecting the file format for sharing, tap Done to return to the share options.

5) Touch the AirDrop icon to share the images and videos with a nearby device. To save them to the built-in Files app, choose Save to Files from the menu. Or, choose from other options to send the selected media items to a particular app.

Differences in file size and quality

The Most Compatible option will transcode the files from the HEIFF/HEVC formats into JPG/MOV, which should result in smaller file sizes. You may also notice a small visual difference in quality, which is one of the consequences of recompression.

Set your iPhone camera to shoot in ‘Most Compatible’ format

To change the default shooting format, go to Settings > Camera > Formats > and choose Most Compatible. Enabling this option ensures you won’t run into compatibility problems when sharing, but will eat into your iPhone’s local storage and your iCloud storage for those who sync their Photos libraries across devices.

Other helpful tutorials

You may find these related tutorials useful:

Also, check out: How to stop your iPhone from converting image file formats (PNG to JPG) when AirDropping them