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Why thumbnail is not clear when more than 100%(for example 120%)

How to save thumbnail to a clear gif picture(More than 100%, maybe 120%). i can save as wmf file,it’s very clear, but can’t open in illustrator.(use acdsee it can be openned correctly). can you modify your thumbnail method(when save as gif, save as wmf, then convert to gif. i am not sure it can works good, please try)

Dear Adam,

We use Bitmap.GetThumbnailImage for creating thumbnails of different size yet.
And it renders images with very bad quality for large scaling.
It will be replaced soon.