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Exporting PNGs with Transparency - Weird Lines on First Import, Fine on Second

New Here ,
Oct 27, 2020

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Hey folks,

 

When I export these files, they often have weird lines on them the first time I export them. The second time - they're fine. I can't put my finger on what is going on.

 

Here are the images:

Lines examples 

Ceremonial Macuahuitl - Rare Att.png

Jade Skull of the Sun King - Rare Att.png

 

No lines examplesCeremonial Macuahuitl - Rare Att.png

Jade Skull of the Sun King - Rare Att.png

 

Here are my settings:

Transparency blend mode: RGB

Quality: Maximum or High (doesn't seem to make a difference)
Resolution: 300 ppi

Colour space: RGB

Checked: transparent background

Checked: Anti-alias (is it this??)

 

 

On Windows 10, Indesign v 15.1.2 (I'll update soon, but this has happened across multiple verisons).

 

Let me know if you need any more info! Thanks

TOPICS
Bug, Import and export, Performance

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Exporting PNGs with Transparency - Weird Lines on First Import, Fine on Second

New Here ,
Oct 27, 2020

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Hey folks,

 

When I export these files, they often have weird lines on them the first time I export them. The second time - they're fine. I can't put my finger on what is going on.

 

Here are the images:

Lines examples 

Ceremonial Macuahuitl - Rare Att.png

Jade Skull of the Sun King - Rare Att.png

 

No lines examplesCeremonial Macuahuitl - Rare Att.png

Jade Skull of the Sun King - Rare Att.png

 

Here are my settings:

Transparency blend mode: RGB

Quality: Maximum or High (doesn't seem to make a difference)
Resolution: 300 ppi

Colour space: RGB

Checked: transparent background

Checked: Anti-alias (is it this??)

 

 

On Windows 10, Indesign v 15.1.2 (I'll update soon, but this has happened across multiple verisons).

 

Let me know if you need any more info! Thanks

TOPICS
Bug, Import and export, Performance

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66

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Oct 27, 2020 0
Adobe Community Professional ,
Oct 28, 2020

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What is the format of the placed assets? Are they image files or PDFs?

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Oct 28, 2020 0
New Here ,
Oct 29, 2020

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Whoops! Key piece of info - they're pngs. Unfortunately I can't get access to PSD files so pngs will have to do.

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Oct 29, 2020 0
Adobe Community Professional ,
Oct 30, 2020

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Just to clarify, you are exporting PNGs (not PDFs), and the placed images on the pages are also PNGs? 

 

Are the placed images linked or pasted? If they are linked, is their Status in the Links panel showing as Normal?

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Oct 30, 2020 0
New Here ,
Oct 30, 2020

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Yes: I'm both exporting as PNGs and all the non-text elements are PNG links which show as 'OK' on mouseover (which I assume is 'normal'). The only PNG elements with transparency are the item images, and they're the ones that mess up (have the lines).

 

You'll notice that as well as the lines appearing when it bugs out, the 'glow' around the items appears to be bigger and less transparent.

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Oct 30, 2020 0
Adobe Community Professional ,
Oct 30, 2020

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Can you share one of the pages and its placed assets via Dropbox or your CC account?

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Oct 30, 2020 0
New Here ,
Nov 02, 2020

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Hi Rob, I've sent you a PM with the link.

 

Max

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Nov 02, 2020 0
Avairion LATEST
New Here ,
Nov 02, 2020

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So I'm starting to notice a pattern. If I have 3 versions of the image (say, for uncommon, rare, and very rare rarities), the first time the image is exported as a png (i.e. for the 'uncommon' version) it has the lines. The 2nd and 3rd times it does not have the lines, the transparency renders correctly.

 

To test this, perhaps duplicate the page in the indesign file I sent you. Then when you export tham all as spreads, you'll see what I mean (unless the error is at my end).

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Nov 02, 2020 0