3D FlipBook - Thumbnail quality

p***o@piipoo.fi
2020-09-17
2020-09-19

Hi,

I am trying to set thumbnails + Lightbox. I have changed the Wordpress thumbnail sizes to 400x400 px but the quality is very bad. The original pdf is very good quality. Is this due to Wordpress or 3d Flipbook?

Replies

a***r@3dflipbook.net
2020-09-17
2020-09-17

hi, write a link to any page where you use thumbnails.

p***o@piipoo.fi
2020-09-17
2020-09-17

http://www.piipoo.net/autot-ja-kulkuneuvot/lippakioski/ The original pdf: http://www.piipoo.net/wp-content/uploads/2020/09/EO_016_Valmis-1.pdf

p***o@piipoo.fi
2020-09-17
2020-09-17

Thumbnail sizes in Wordpress are set to 450x450 px, 600x600 px and 1024x1024 px.

a***r@3dflipbook.net
2020-09-17
2020-09-17

thank you. could you show the difference on a picture, what is wrong? you can upload it here https://imgbb.com/

p***o@piipoo.fi
2020-09-18
2020-09-18

Hi, as you can see the thumbnail picture is super blurry and low quality compared to the original pdf-file uploaded to 3D Flipbook.

a***r@3dflipbook.net
2020-09-19
2020-09-19

See http://www.piipoo.net/wp-content/uploads/3d-flip-book/auto-thumbnails/989.png this is what the plugin renders, then browser scales it because of style:

img {
    height: auto;
    max-width: 100%;
}

450px>424.52px the scale algorithm brings some blur

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