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How to Convert HEIC to JPEG (Mac, iPhone, PC)

Stackhouse Support
Updated

HEIC is a photo format used by Apple devices. It is great for saving space, but is not currently compatible with our upload system. To print your image with us, you’ll need to convert it to JPEG first. Here’s how.

iPhone or iPad (Quickest Method)

  1. Open the Photos app and select your image.

  2. Tap the Share icon.

  3. Choose Save to Files > On My iPhone > Save.

  4. Open the Files app, find the image, tap and hold it.

  5. Tap Quick Actions > Convert Image, then choose JPEG.

✅ Pro Tip: You can also email the image to yourself and it will convert to JPEG automatically.

Mac (Using Preview)

  1. Open the HEIC file in Preview.

  2. Click File > Export.

  3. Choose JPEG from the format dropdown.

  4. Adjust quality (80–100% recommended), then click Save.

Windows PC

If your computer doesn’t support HEIC files:

  1. Download and install the free iMazing HEIC Converter or use an online tool like heictojpg.com.

  2. Drag your HEIC files into the converter.

  3. Choose JPEG as the output format.

  4. Save and upload your new file.

Need More Help?

Still stuck? Contact us at Support@thestackhouse.com or click here to reach out — we’re happy to help.

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Comments

1 comment

Date Votes
  • jack

    Thanks for the guide. Just want to share my experience as a photographer. I used to use heictojpg.com for converting iPhone photos of my artwork before uploading for giclee
     prints, but ran into serious issues. 

    First, JPEG compression was degrading the fine details and color accuracy needed for gallery-quality reproductions, especially on larger
     prints like 16x20 or 24x36. Second, uploading original artwork files to third-party servers is a real security risk. Your intellectual property passes through their servers, gets
     stored temporarily, and you have no control over what happens during that time.

     For professional artists, that's not acceptable. I switched to heic2png.app and it completely
     eliminated those concerns. It converts to PNG format which preserves every detail without compression loss (critical for archival-quality printing), and everything processes
     locally in your browser using WebAssembly. Your artwork files never leave your computer, never touch any server, and stay 100% under your control. Works perfectly for converting
     reference photos of paintings, gallery shots, or any HEIC files before sending to The Stackhouse. The difference in print quality is really noticeable when you're doing
     museum-quality reproductions, and the peace of mind knowing your work stays private is invaluable. Just thought I'd share since both quality and security matter so much for
     professional printing.

    0

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