Image guides
for real file problems.
Practical guides for resizing, compression, formats, marketplace photos, metadata, privacy, and common upload problems.
Marketplace Guides
Amazon Product Image Requirements: A Practical Seller Guide
Understand measurable Amazon image checks, main-image content rules, zoom readiness, and what an automated resizer cannot guarantee.
Read guide →Last reviewed August 10, 2026How to Check an Amazon Main Image’s White Background
Learn what pure white means, how OpenFileTools estimates border whiteness, and why automatic checks still need human review.
Read guide →Last reviewed August 10, 2026Etsy Listing Image Size: Minimums, Recommendations, and Cropping
Separate Etsy’s first-photo threshold from its 2,000-pixel quality recommendation and plan safer thumbnail crops.
Read guide →Last reviewed August 10, 2026eBay Picture Requirements and Quality Recommendations
Check eBay’s documented 500-pixel minimum, 12 MB upload limit, recommended quality, and prohibited photo additions.
Read guide →Last reviewed August 10, 2026Shopify Product Image Size and Storefront Consistency
Understand Shopify’s flexible upload limits, the 2,048-pixel square recommendation, and why consistent ratios matter.
Read guide →Last reviewed August 10, 2026Amazon Image Size for Zoom: Pixels, Detail, and Practical Targets
Understand Amazon zoom readiness, the 1,600-pixel working target, and why upscaling does not create sharper product detail.
Read guide →Last reviewed August 10, 2026Why Amazon Product Images Look Blurry
Diagnose source resolution, focus, compression, enlargement, and storefront display issues before exporting another Amazon image.
Read guide →Last reviewed August 10, 2026Amazon Main Image vs. Secondary Images
Plan a product-image set by separating strict main-image presentation from useful secondary, detail, and lifestyle photographs.
Read guide →Last reviewed August 10, 2026Etsy Thumbnail Cropping Guide for Listing Photos
Frame Etsy listing photos so important product details survive square, landscape, and mobile thumbnail crops.
Read guide →Last reviewed August 10, 2026eBay Photo Size and File Limit Explained
Separate eBay's longest-side minimum, OpenFileTools quality target, 12 MB guidance, and proportional image choices.
Read guide →Last reviewed August 10, 2026How to Optimize Shopify Product Images
Balance useful resolution, file size, theme crops, and catalog consistency without treating every Shopify image as square.
Read guide →Last reviewed August 10, 2026Shopify Square vs. Portrait Product Images
Choose a storefront image ratio based on product presentation and theme behavior rather than a false universal square requirement.
Read guide →Last reviewed August 10, 2026Marketplace Image Size Comparison: Amazon, Etsy, eBay, and Shopify
Compare important thresholds and proportional working targets without turning recommendations into false universal requirements.
Read guide →Resizing & Compression
How to Reduce Image File Size Without Guessing
Choose between quality changes, smaller dimensions, and modern formats while checking the measured result.
Read guide →Last reviewed August 10, 2026Image Too Large to Upload: A Seller’s Checklist
Diagnose pixel, byte, format, and marketplace limits before resizing or compressing a product image.
Read guide →Last reviewed August 10, 2026Image Dimensions vs. File Size: What Actually Changes
Learn why pixel dimensions, megapixels, format, quality, and visual complexity affect image bytes in different ways.
Read guide →Last reviewed August 10, 2026Why Is My Compressed Image Larger?
Understand why re-encoding an already optimized image can increase bytes and how dimensions, format, and quality affect the result.
Read guide →Last reviewed August 10, 2026Image Aspect Ratio Explained Without Stretching or Cropping
Understand proportional resizing, fit, crop, padding, and practical landscape, portrait, and square examples.
Read guide →Image Formats
Privacy & Metadata
How to Remove Photo Metadata Before Sharing
Understand what image metadata can reveal and create a clean pixel-only copy locally.
Read guide →Last reviewed August 10, 2026What Is EXIF Metadata and Does Your Photo Contain It?
Learn which details may be embedded in a photo and inspect them without uploading the file.
Read guide →Last reviewed August 10, 2026How to Remove GPS Data from Photos Before Sharing
Inspect recognized location metadata, create a clean local copy, and understand what metadata removal does not hide.
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