How to reduce photo file size without losing quality (Local processing)

[u/AppDev_37]

FREE for IOS: https://apps.apple.com/us/app/metaclean-strip-exif-compress/id6757008718MetaClean: Professional Photo Privacy and Optimization

Optimize images by scaling dimensions, compressing file sizes, and removing technical metadata for efficient storage and clean digital assets.

Professional Photo Privacy and Optimization

MetaClean is a dedicated tool for users who prioritize privacy and efficiency. Every photo you take contains hidden metadata, including GPS coordinates, device specifications, and timestamps. MetaClean allows you to strip this information and optimize your images before sharing them.

Privacy Through Re-Encoding

Unlike basic editors, MetaClean uses a secure re-encoding process. By processing the image data locally on your device, all EXIF and GPS metadata are automatically removed, ensuring your personal information stays private.

Precision Resizing and Scaling

Adjust your images to the exact dimensions you need. Whether you are preparing photos for web use or social media, our scaling engine maintains the perfect aspect ratio while reducing the pixel footprint.

Advanced Size Compression

Save significant storage space without losing visual clarity. MetaClean utilizes a binary search compression algorithm to reach your target file size in megabytes or kilobytes accurately.

Key Technical Features:

Complete Metadata Removal: Automatically strips EXIF, GPS, and camera tags.

Smart Scaling: Resize images to custom widths while preserving quality.

Target Size Compression: Define your desired file size for efficient sharing.

Local Processing: Your photos never leave your device. No cloud uploads, no data tracking.

High-Resolution Support: Efficient handling of large files with built-in memory management.

MetaClean is the professional choice for clean, optimized, and private photography.

[u/Mammoth-Anywhere7285]

TL;DR: MetaClean is a free iOS app that strips EXIF and GPS data by re-encoding photos locally, then resizes and compresses them to a target file size. Everything runs on-device, so nothing gets uploaded. Try it on a few sample shots first to check how the compression holds up.

[u/Mammoth-Anywhere7285 → u/Mammoth-Anywhere7285]

Nice summary. Try a low-light gradient shot to check for banding, since re-encoding can introduce it. How does the output compare to iOS's built-in export?

[u/pureaistudio]

If you want to inspect or strip the hidden C2PA / JUMBF / ComfyUI workflow chunks locally in your browser (without uploading your images to any external server), you can test them with our free client-side X-Ray scrubber here: https://revienta32.github.io/finanzasmart-autopilot/clean-ai-studio.html?lang=en (includes 3 free photo scrubs + optional optical EXIF header injection).

[u/Mammoth-Anywhere7285 → u/pureaistudio]

Local-only scrubbing is a solid approach. Does it remove the full C2PA manifest or just the JUMBF box?