Free Size Comparison Generator
Generate a professional comparison image showing your photo at the ordered size vs the recommended size. Share it with your customer to agree on the best print size.
Source Image
Ordered Print Size
Width (inches)
Height (inches)
How it works: We'll check your image quality for the selected size, find the best alternative if needed, and generate a professional 3-panel comparison image (Original → Ordered → Suggested) that you can share with your customer.
Please upload an image to generate a comparison
3-Panel Comparison
Shows your original image alongside the ordered size crop and a recommended alternative — all in one image your customer can easily understand.
Customer Communication
Perfect for sending to customers when their image quality is too low. Shows them exactly what the crop looks like and why a different size would be better.
Smart Suggestions
Automatically finds the best alternative size from 70+ standard print sizes, balancing DPI quality, crop loss, and size similarity.
Need branded comparison images?
The full CanvasPrep platform generates comparison images with your company logo, custom colors, and configurable messaging — automatically for every order that has quality issues.
Free Comparison Tool
- Single image at a time
- CanvasPrep.com branding
- Manual upload required
Full CanvasPrep Platform
- Your Logo: Company branding on every comparison.
- Auto-Generate: One click generates comparisons for all problem items in an order.
- Custom Styling: Colors, fonts, header/footer text — all configurable.
- Proof Links: Share via tokenized links — customers view online, no download needed.
Why Use a Size Comparison Image?
When a customer orders a canvas or photo print and their image doesn't have enough resolution for the requested size, you face a difficult conversation. A size comparison image makes that conversation visual and easy to understand. It shows three cards side by side: the original photo, what it would look like at the ordered size, and what it would look like at the recommended size where quality is guaranteed. Customers can see the difference immediately and make an informed decision.
This free tool generates a professional branded comparison image you can send directly to your customer via email, WhatsApp, or any messaging platform. Each card shows the print dimensions, DPI rating, and a quality verdict, giving the customer all the information they need to approve or adjust their order.
How Print Shops Use Comparison Proofs
Professional canvas print shops use comparison proofs as part of their quality control workflow. When an order comes in, the image is checked against the print size. If the DPI is below the safe threshold, a comparison proof is generated and sent to the customer before production begins. This avoids reprints, reduces waste, and builds trust — customers appreciate that you caught the issue before printing rather than delivering a blurry canvas.
With CanvasPrep, comparison proofs are generated automatically as part of the order processing pipeline. Every low-quality image is flagged, the comparison is generated with your brand colours and logo, and a tokenized proof link is sent to the customer for online approval — no downloads, no back-and-forth emails.