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[By Design] Underlines and Hyperlinks showing different thicknesses when exported as a PDF


robskinn
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PDFs exported from Affinity Publisher display different underlines on the same page at different thicknesses as you can tell in my screenshot below. This doesn't happen when comparing an exact replica of the document exported from Adobe InDesign so that rules out the PDF viewer.

I understand that no width adjustments can be made to underlines as they are a style attached to the font. 

I tried using 'Decorations', but they only relate to Paragraph styles, not character styles! 

Anyone found a way to fix this?

 

Affinity Publisher

835304437_Screenshot2020-09-24at13_14_01.png.bee0432379e02afc4049541a2bb5f108.png

Adobe InDesign

1202023690_Screenshot2020-09-24at13_14_54.png.fa5a73311c26dbfb224ff22fc398b0d1.png

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Is one of those a hyperlink, and the other simply an underline? If so, which is which?

Does it appear correct when you look at your .afpub document in Publisher?

What font are you using?

 

-- Walt

   Desktop: new:  Windows 11 Home, version 21H2 (22000.613) 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090  (old: 16GB memory, Intel Core i7-6700K @ 4.00GHz, GeForce GTX 970 )
   Laptop:  Windows 10 Home, version 21H2 (19044.1706) 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
    Affinity Photo 1.10.5 (.1342) and 1.10.5.1342 Beta   / Affinity Designer 1.10.5 (.1342) and 1.10.5.1342 Beta  / Affinity Publisher 1.10.5 (.1342) and 1.10.5.1282 Beta
 iPad Pro M1, 12.9", iPadOS 15.4.1, Apple Pencil 2, Magic Keyboard

  Affinity Photo 1.10.5 (.280) and 1.10.2 (.266) Beta / Affinity Designer 1.10.5 (.21) and 1.10.3 (.19) Beta 

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Hi Walt,

They are both underlines. I've tested these as hyperlinks and they behave in the same way, which I expected as the hyperlink is only a style for the an underline.

The font is OpenSans. I've tried a couple of different sets of this font, including the one packaged from the Adobe InDesign doc but they all show the same anomaly. 

No, it doesn't show-up in the native Publisher doc, only in exported PDFs.

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Thanks.

I don't see it with Arial, so I'm not sure what's causing it in your case. Can you provide a sample .afpub file that demonstrates it, in case something else is involved?

-- Walt

   Desktop: new:  Windows 11 Home, version 21H2 (22000.613) 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090  (old: 16GB memory, Intel Core i7-6700K @ 4.00GHz, GeForce GTX 970 )
   Laptop:  Windows 10 Home, version 21H2 (19044.1706) 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
    Affinity Photo 1.10.5 (.1342) and 1.10.5.1342 Beta   / Affinity Designer 1.10.5 (.1342) and 1.10.5.1342 Beta  / Affinity Publisher 1.10.5 (.1342) and 1.10.5.1282 Beta
 iPad Pro M1, 12.9", iPadOS 15.4.1, Apple Pencil 2, Magic Keyboard

  Affinity Photo 1.10.5 (.280) and 1.10.2 (.266) Beta / Affinity Designer 1.10.5 (.21) and 1.10.3 (.19) Beta 

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Thanks. Is that the actual version that's giving you trouble? In the one you uploaded, on page 40, you seem to have drawn the underlines manually, rather than using the underlining function provided natively for the font. And it displays fine for me in Acrobat Reader.

-- Walt

   Desktop: new:  Windows 11 Home, version 21H2 (22000.613) 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090  (old: 16GB memory, Intel Core i7-6700K @ 4.00GHz, GeForce GTX 970 )
   Laptop:  Windows 10 Home, version 21H2 (19044.1706) 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
    Affinity Photo 1.10.5 (.1342) and 1.10.5.1342 Beta   / Affinity Designer 1.10.5 (.1342) and 1.10.5.1342 Beta  / Affinity Publisher 1.10.5 (.1342) and 1.10.5.1282 Beta
 iPad Pro M1, 12.9", iPadOS 15.4.1, Apple Pencil 2, Magic Keyboard

  Affinity Photo 1.10.5 (.280) and 1.10.2 (.266) Beta / Affinity Designer 1.10.5 (.21) and 1.10.3 (.19) Beta 

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Thanks. That's very strange. I can't see anything different that would explain why "American Terms" ends up with a thinner underline.

(By adding two blank lines before the line with "British Terms" I managed to make its underline thinner. But I don't understand why that happened, either.)

-- Walt

   Desktop: new:  Windows 11 Home, version 21H2 (22000.613) 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090  (old: 16GB memory, Intel Core i7-6700K @ 4.00GHz, GeForce GTX 970 )
   Laptop:  Windows 10 Home, version 21H2 (19044.1706) 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
    Affinity Photo 1.10.5 (.1342) and 1.10.5.1342 Beta   / Affinity Designer 1.10.5 (.1342) and 1.10.5.1342 Beta  / Affinity Publisher 1.10.5 (.1342) and 1.10.5.1282 Beta
 iPad Pro M1, 12.9", iPadOS 15.4.1, Apple Pencil 2, Magic Keyboard

  Affinity Photo 1.10.5 (.280) and 1.10.2 (.266) Beta / Affinity Designer 1.10.5 (.21) and 1.10.3 (.19) Beta 

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Hi both,

I can't see anything wrong in Preview. 

image.png

Friday, 25 September 2020 at 09-27-00.pdf

What you might see it's a rendering issue caused by Acrobat, which happens at different zoom levels. See below. I created a new text frame directly in Acrobat, and it shows the exact same thick/thin line issue. 

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Yes, I agree. I think it has something to do with the way that Acrobat calculates the underline width across pixels, I sometimes notice a similar thing in web development displayed on HD screens. It looks like InDesign gets around this by adding a variable width for underlines which seems to help reduce the discrepancy. I ended up using a 0.7pt pen stroke, which is not perfect, especially in a 36 page document with linked text boxes, but as a temporary fix, it worked.

The issue I have is that the U.S version of the doc is created in InDesign and because they have an option for variable underline thickness, they can get around this. However it does mean that my client has a direct comparison between their polished version and my slightly unpolished version.

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