Changing the size of photo in google merchant center

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Topic summary

A merchant is facing rejection from Google Merchant Center (GMC) due to product images not fitting ad campaign requirements. The challenge involves 22,000 product variants with rectangular photos synced from Shopify, making manual editing impractical.

Proposed Solutions:

  • Shopify Apps: Bulk Image Edit & SEO or Pixc Product Photo Editor for automated resizing and optimization
  • Desktop Tools: Adobe Photoshop batch processing, Canva Pro, or FastStone Photo Resizer for bulk adjustments
  • Feed Management: DataFeedWatch or ShoppingFeeder to automatically adjust image dimensions in product feeds
  • Online Tools: Web-based image resizers that handle bulk processing with fixed dimensions and zip downloads

Key Requirement: GMC prefers square or 4:3 aspect ratio images. The discussion remains open with multiple workflow options suggested but no confirmed resolution yet.

Summarized with AI on October 27. AI used: claude-sonnet-4-5-20250929.
1

Hello,

I have a problem, that Google Merchant Cetner wont accept my products because, they doesnt fit into the ad campagin. The photos are synchronized with photos from shopify. I have about 22k of product variants, so there is no way i am doing that manually. Is there any app or trick to edit them in bulk edit so they will look good in GMC ? When i looked at other stores they also have rectangle photos, but on google they fit. Thank you very much :slightly_smiling_face:

https://www.pickupstore.cz/

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2 Likes
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Hi @radaApeta

To bulk edit your product photos to meet Google Merchant Center (GMC) requirements, you can use the following methods:

1-Photo Editing Apps: Use Shopify apps like:

  • Bulk Image Edit & SEO: Resize, crop, or compress images in bulk to fit GMC guidelines.
  • Pixc Product Photo Editor: Automates resizing and optimization. (Shopify App Store)

2-Third-Party Tools:

  • Use Adobe Photoshop (Batch Processing) or Canva Pro for bulk resizing.
  • FastStone Photo Resizer (Windows) for batch adjustments.

3-Automate via Feed Management Tool:

  • Use feed tools like DataFeedWatch or ShoppingFeeder to process your Shopify feed and adjust image dimensions automatically.

4-Ensure Correct Aspect Ratio:

  • GMC prefers square or 4:3 aspect ratio photos. Check Google’s image guidelines.

These methods allow you to bulk edit and synchronize images effectively with GMC.

If you have other questions, feel free to ask me.

Best regards,
Daisy

3

I think you can bulk resize your images easily with any online image tools like https://imagitool.com/resize-image
it lets you set fixed dimensions for all those 22k product images in one go, keep aspect ratio, adjust quality, and download everything as a zip. saved tons of time for me.