Start with the original HEIC file
Use the file directly from your phone or photo library, not a screenshot or a JPG that has already been shared through a messaging app. Every extra export can remove detail.
Use a high JPEG quality setting
HEIC Glide uses a high-quality JPEG output suitable for everyday photos. Higher JPEG quality normally preserves more detail, but it also creates a larger file.
Avoid repeated conversions
Convert once from the original HEIC file, then share copies of that JPG. Opening and resaving the JPG repeatedly can add compression artifacts over time.
Keep resolution and compression separate
Resolution is the number of pixels in the image. Compression controls how those pixels are stored. A JPG can keep the same pixel dimensions while still losing a small amount of fine detail through compression.
Convert with high-quality output
Check the result before deleting anything
Open the JPG at full size and check faces, text, edges, gradients, and low-light areas. Keep the original HEIC even when the JPG looks good.
Frequently asked questions
Can conversion increase image detail?
No. A new format cannot restore detail that is not present in the source file.
Why is the JPG larger?
HEIC often compresses photos more efficiently. A high-quality JPG may therefore use more storage.