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PNG alpha channel is converted to white instead of default ugly black

pull/255/head
azivner 2018-01-07 08:26:42 +07:00
parent 97c1b3061f
commit d9f2bb37e7
1 changed files with 3 additions and 0 deletions
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3
routes/api/image.js
Unescape Escape View File

@ -107,6 +107,9 @@ async function resize(buffer) {
// we do resizing with max quality which will be trimmed during optimization step next // we do resizing with max quality which will be trimmed during optimization step next
image.quality(100); image.quality(100);
// when converting PNG to JPG we lose alpha channel, this is replaced by white to match Trilium white background
image.background(0xFFFFFFFF);
// getBuffer doesn't support promises so this workaround // getBuffer doesn't support promises so this workaround
return await new Promise((resolve, reject) => image.getBuffer(jimp.MIME_JPEG, (err, data) => { return await new Promise((resolve, reject) => image.getBuffer(jimp.MIME_JPEG, (err, data) => {
if (err) { if (err) {