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Posted

v 2.6.1.3134

Hello everyone,

I need to generate several dimensions of an image for a website.

Reducing a WEBP image to 480 px often gives a mediocre result.

Integrating the AFFPUB version used to create this WEBP image into another AFPUB file generally doesn't improve the rendering, and may even make it worse.

Is there a way to get a better result?

Please find attached the original file and its integration into a target file.

cible_5120.webp

cible_480.webp

origine_480.webp

origine_4678.webp

cible.afpub origine.afpub

6 cœurs, 12 processus - Windows 11 pro - 4K - DirectX 12 - Suite universelle Affinity (Affinity  Publisher, Affinity Designer, Affinity Photo).

Mais je vous le demande, peut-on imaginer une police sans sérifs ?

Posted

Reducing the resolution by factor 10 in 2 dimensions has naturally an impact to details. 
For a test, make a copy of the publisher file and reduce resolution of the document. Then use view mode pixel to get a realistic preview what the export while looking at like.

To keep text readable, you need at least 10px with specifically suited fonts, perfectly aligned to pixel positions (which is impossible in Affinity).

For good looking sharp text, you need 20-30 px for a letter.

Other apps might provide better results for such extreme downscales, but you have to accept the laws of physics / nature.

In general, you may get better results by sharpening after downscale, trying other resampling methods as bilinear (which is the softest) or using external image encoders.

Mac mini M1 A2348 | MBP M3 

Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.

 

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