PDF: White text, enormous black stroke, white parts missing

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657354
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PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Tue Oct 17, 2017 2:06 pm

There is white text. It has an enormous black stroke. The stroke style order has been adjusted. The white text looks fine in Inkscape, but not in a PDF. The black stroke covers most of the white parts. Each letter's stroke covers the previous letter's white parts.

Moini
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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Tue Oct 17, 2017 9:10 pm

I guess the pdf renderer does not support the stroke order property, then. Works with evince.
What are you using to display the pdf? Can you share the pdf so we can verify?
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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Wed Oct 18, 2017 4:00 am

Adobe Acrobat Reader DC
2017.012.20098

drawing-3.pdf
(14.5 KiB) Downloaded 14 times

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Re: PDF: White text, enormous black stroke, white parts missing

Postby brynn » Wed Oct 18, 2017 4:41 am

Yes, I see the huge strokes. Also Adobe Reader, exact same version.

Can you provide the SVG file too?

I opened the PDF in Inkscape, and the strokes are set to 100%. I just want to see the SVG, in case there's something we can identify that might be causing it.

657354
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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Wed Oct 18, 2017 5:04 am

I changed the font of all the letters to Arial.

drawing-657354.svg
(3.67 KiB) Downloaded 18 times


drawing-657354.pdf
(26.04 KiB) Downloaded 12 times

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Re: PDF: White text, enormous black stroke, white parts missing

Postby brynn » Wed Oct 18, 2017 5:57 am

Well your strokes are already really wide in the SVG. 10 mm for the small text and 73 mm for the large letters. So the strokes do seem to be getting wider, but at first, I thought you meant it was a normal stroke (1 px, maybe 2 or 5 px). So it's not as severe as I thought at first.

Hhmm, I can't figure out what's causing this. But I did find a way around it. Select all the text and do Path menu > Union. Then when you save as PDF, everything will look the same.
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ws-pdf.png
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Re: PDF: White text, enormous black stroke, white parts missing

Postby brynn » Wed Oct 18, 2017 6:03 am

When I let the PDF dialog convert to paths, I still see the problem. But using either Union, or Object to Path, Ungroup, Combine, it doesn't happen. Somehow it's the Combine part (which Union does automatically) (which the PDF dialog apparently doesn't do) that seems to avoid the problem.

I'll search for bug reports.

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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Wed Oct 18, 2017 6:42 am

Ah, okay, I see. In the pdf, it seems the style is added *per letter*. And each letter is a single object, which overlaps the previous one. Letters do not seem to be part of a 'text object', whose letters have a *common* outline, as they would have in Inkscape, but they all have their separate outline.

Unioning or combining the letters to a single path or duplicating the text, one with and one without stroke, or splitting of the stroke off as a path and putting it below all letters seem to be the only ways to keep the outline below the letters.
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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Wed Oct 18, 2017 6:43 am

(not sure if this is a general issue with pdfs, or if it's an issue with how Inkscape creates pdfs - if in doubt, a bug report could help finding that out)
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Re: PDF: White text, enormous black stroke, white parts missing

Postby brynn » Wed Oct 18, 2017 2:20 pm

Sorry, I got sidetracked earlier.

I saw a few bug reports about text exporting to PDF incorrectly, but none sounded (or looked) exactly like this. I'm not sure if it would be considered a bug or not. It looks more like using the really wide strokes is causing the problem. But fortunately, there's a solution (or at least workaround).

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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Sat Oct 21, 2017 8:42 am

Found new problem.

Please see attachment.

font stroke problem.svg
(4.61 KiB) Downloaded 8 times


Thank you for the workaround. However, the workaround is extremely inconvenient when there are hundreds of pieces of text that need attention. Also, many of those pieces of text will need to be modified in the future.

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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Sat Oct 21, 2017 9:29 am

This is how it can work for multiple texts at once, which will change with the original texts:
- select one text
- right-click > Select same > Object type
- right-click on the 'stroke' color field in bottom left corner -> Unset stroke
- Edit > Clone > Create Clone
- Apply a stroke to the now selected clones
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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Sat Oct 21, 2017 9:36 am

The spikes are more in Inkscape, but the holes look the same in Firefox, so I don't think this is a bug. It's just that a stroke is not made for this kind of size and amount of overlapping. You might want to look into offsets for this. Linked offsets export well to pdf (just tested). They might then be exactly what you're looking for.
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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Sat Oct 21, 2017 10:16 am

Please see attachment.

font stroke problem 2.svg
(5.58 KiB) Downloaded 10 times

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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Sat Oct 21, 2017 10:34 am

Please see attachment.

Linked Offset problem.svg
(30.7 KiB) Downloaded 6 times

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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Sat Oct 21, 2017 10:44 am

Not sure what is new about font_stroke_problem_2.svg - can you elaborate?

As for the linked offset issues, those are known and are the reason why I haven't suggested it in the first place... There are limits to the amount of offset/stroke that is reasonable to use in Inkscape.

Before final export to pdf, that would mean one additional series of steps: select all the offsets of the same style, then Path > Break apart , then Path > Union.

Or: Ctrl+Shift+K, Ctrl++
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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Sat Oct 21, 2017 10:47 am

Edited above post, there was one step too many.
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Re: PDF: White text, enormous black stroke, white parts missing

Postby Moini » Sat Oct 21, 2017 10:49 am

That only fixes the holes, not the spikes. The same could be done with the stroked objects (Stroke to path > Break apart > Union).
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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Sat Oct 21, 2017 11:40 am

Why does arial display properly and times new roman doesn't?

font stroke problem 2.svg
(5.58 KiB) Downloaded 7 times

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Re: PDF: White text, enormous black stroke, white parts missing

Postby tylerdurden » Sat Oct 21, 2017 10:28 pm

Times has a round period (dot), Arial has a square one.
Have a nice day.

I'm using Inkscape 0.92.2 (5c3e80d, 2017-08-06), 64 bit win8.1

The Inkscape manual has lots of helpful info! http://tavmjong.free.fr/INKSCAPE/MANUAL/html/

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Re: PDF: White text, enormous black stroke, white parts missing

Postby brynn » Sun Oct 22, 2017 11:02 pm

It looks like you might be exploring some different ways for achieving the effect you see with the huge stroke widths (referring to the file with linked offset problems). But there are probably more ways to do it.

The simplest one I can think of, is to search for a font which might automatically look kind of like balloons with letters in them, or that have clouds around them. I'm sure I've seen some.

The way I would probably do it, is to draw the cloud shaped objects separately. Type the text and put it on top. With the text, do Path menu > Union (converts it to paths). Then select both cloud and text/paths, and do Path menu > Difference. I'm not sure how many of these you could do all at once. After the paths, or probably more precisely, the nodes get more numerous, it's less likely to work.

But for example, after aligning all the text objects with their clouds, you could select all the text at once, and do Path menu > Union. Select all the clouds and do Path menu > Combine. Select everything, and do Path menu > Difference. I've done it successfully with six text objects and six clouds. Not sure how far you could go with it. Not sure how much text you're dealing with.

However, comparing this process with your original routine, plus additionally Unioning the text - that seems much faster than my approach. You should be able to select all the text at once, and union it all at once, before saving as PDF.

657354
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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Mon Oct 23, 2017 11:10 am

Hmm... So Inkscape is working as intended? These issues aren't bugs?

font stroke problem 2.svg
(5.58 KiB) Downloaded 5 times

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Re: PDF: White text, enormous black stroke, white parts missing

Postby tylerdurden » Mon Oct 23, 2017 11:36 am

657354 wrote:Hmm... So Inkscape is working as intended? These issues aren't bugs?

Even if they technically qualified as bugs, they probably wouldn't rate as a high priority.

(I haven't seen a great demand for such oversized strokes, myself.)
Have a nice day.

I'm using Inkscape 0.92.2 (5c3e80d, 2017-08-06), 64 bit win8.1

The Inkscape manual has lots of helpful info! http://tavmjong.free.fr/INKSCAPE/MANUAL/html/

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Re: PDF: White text, enormous black stroke, white parts missing

Postby brynn » Mon Oct 23, 2017 3:03 pm

I don't have the proper expertise to decide whether something is a bug or not. I was just trying to provide some helpful info, to help you reach your goals, using some more traditional solutions.

What I would say is that your solutions are surprising, interesting and creative, but unexpected. If there were no other ways to create the effect you want, then devs would would probably want to fix both of those. But really, the solution I suggested (and probably a couple of other approaches) would be considered more flexible and dependable, and therefore more effective. I mean, you actually have discovered why those solutions are not ideal.

I always find it fascinating what kinds of things can be accomplished by using Inkscape in unexpected ways. There's one particular bug which I hope is never fixed, because I like what it does! (It probably will be though....)

657354
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Re: PDF: White text, enormous black stroke, white parts missing

Postby 657354 » Wed Nov 15, 2017 2:15 am

I tried the trial version of CorelDraw.

It doesn't display very large strokes around dots properly, like inkscape.

However, it creates PDFs correctly, unlike Inkscape.

I tried to attach the correctly made PDF, but for some reason the forum says the file is too large.

I guess I'll have to use an alternative to Inkscape for now.

Thank you for the workarounds, but they're simply too inefficient for what I need to do.


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