Handling Large Photo Files

Modern smartphone sensors can produce raw images exceeding 40MB. While this is great for photography, it can present significant throughput challenges for field workers on mobile data plans. Managing these payloads effectively is key to a reliable workflow.

1. Smartsheet API File Size Limits

Smartsheet has specific payload limits for row attachments (typically up to 250MB per file, but effectively lower for API-driven uploads). Large files can cause the mobile browser's RAM to spike, leading to "Out of Memory" crashes on older devices during the base64 encoding phase of the upload.

2. Mitigation: Attachment Mode

If you absolutely require 4K or RAW resolution for forensic or legal reasons, you must use Attachment Mode. In-Cell mode performs an aggressive server-side resize to make the image fit the grid, which often negates the benefits of a large original file. Attachment mode stores the file in its original state, uncompressed.

3. Browser-Side Optimization

SmartSyncApp performs intelligent client-side compression before the upload begins. This converts high-resolution raw captures into optimized JPEGs, significantly reducing the payload size without noticeable loss of field-documentation quality. If you are experiencing slow uploads, this compression is working in the background to save you bandwidth.

4. Device Memory (RAM) Issues

Capture of high-res photos while multiple other browser tabs are open can exhaust a device's available memory. If your browser "refreshes" automatically when you try to take a photo, close all other background apps and browser tabs to free up resources for the Camera Form's image processing engine.