Preserve Transparency when saving to PNG

[defaultydc8bdl53b6t]

Hi all, 

I am running a script on photoshop that pulls in png files as layers and saves as a png. Problem is the transparency of the layers is not being preserved and we are seeing white corners on our rounded images.

I urgently need some help as we have loads to generate and a tight timeframe!

Code:

```

var saveLocation = File("/Users/user/Dropbox/Mad Cat Militia/__GENERATED CATS__/cat.png");

var opts;

opts = new ExportOptionsSaveForWeb();

opts.format = SaveDocumentType.PNG;

opts.PNG8 = false;

opts.quality = 100;

app.activeDocument.exportDocument(saveLocation, ExportType.SAVEFORWEB, opts);

app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);

```

Thankyou!!

[c.pfaffenbichler]

Why haven’t you posted one of the images? 

Edit: I apologize, I had misread and you did use png24. 

Could you please post screenshots of the original image taken at View > 100% and the resulting png? 

[Stephen_A_Marsh]

Dupe post, I answered here this morning:

Photoshop script adding in a white layer unexpectedly

[defaultydc8bdl53b6t]

Hi, 

I am generating a png file from multiple png files as layers. Output is showing white corners (image has rounded ones) and it seems as if a white layer is being added in the generation.

REALLY APPRRECIATE any help - we are really up against it!

Any ideas why that woud be happening here:

```

for (var i = 0; i < items.length; i++) {

if (items[i]) {

var doc = open(items[i]);

var layer = doc.activeLayer;

layer.name = layerNames[i];

layer.duplicate(document, ElementPlacement.PLACEATBEGINNING);

// close imported document

doc.close(SaveOptions.DONOTSAVECHANGES);

}

}

var saveLocation = File("/Users/user/Dropbox/Mad Cat Militia/__GENERATED CATS__/cat.png");

var opts;

opts = new ExportOptionsSaveForWeb();

opts.format = SaveDocumentType.PNG;

opts.PNG8 = false;

opts.quality = 100;

app.activeDocument.exportDocument(saveLocation, ExportType.SAVEFORWEB, opts);

app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);

}

```

[defaultydc8bdl53b6t]

missed this line from the top 

for (var j = 0; j < cats.length; j++) {

var document = app.documents.add(5000, 5000, 72, "Cat" + j);

[Stephen_A_Marsh]

Try adding to your ExportOptions:

opts.transparency = true;

You may also wish to consider making the script more portable:

var saveLocation = File("~/Dropbox/Mad Cat Militia/__GENERATED CATS__/cat.png");

[Stephen_A_Marsh]

Duplicate post here:

Preserve Transparency when saving to PNG

[Stephen_A_Marsh]

@defaultydc8bdl53b6t 

It looks like a moderator has merged/combined the two separate topics into a single one... So, did adding this code work?

I'm going to remove the correct answer that was applied to my dupe post message.

opts.transparency = true;

[Stephen_A_Marsh]

@defaultydc8bdl53b6t 

Did adding the line of code that I suggested resolve this issue?

Please add likes and or correct answers to the various posts so that when others are searching for a resolution to their issue it will be obvious that a solution was found.