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Double lines to export Designer 2

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Double lines to export

If a rectangle is exported, e.g. as a pdf, a double line is created.
This becomes noticeable when the file is loaded into a rip and the rectangle is to serve as a shape for a cutting plotter.
The plotter will run the shape 2 times. There will be two lines at the distance of the line width. This unfortunately makes the graphic unusable for printing in connection with a cutting plotter.

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The rectangle was only used as an example,
Of course, any shape can appear as a cutting line. For example, a coat of arms shape or a heart.
The coat of arms or the heart should be cut out after printing. By a plotter or by a cutter. If I give the contour no width it will not be exported or am I doing something wrong?
Double line



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We use Posterprint from Ergosoft version 15
But the effect can be checked quite easily.
Export file from Designer 2.0 as pdf and then import it again in the line view the double line will then be visible.
By the way, this effect does not exist in version 1.106. Here the line remains simply, as it should be


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Hello Mick,
so our problem is solved and I would like to thank you very much. It is a great pleasure for us to work with Affinity programs. I still have one question. Will there be a dxf export in the future ? We work a lot with milling and need files in dxf format. At the moment, unfortunately, we have to take the detour of exporting a file created in Affinity as a pdf or eps, importing it in another graphics software to create a dxf file from it.
Kind regards and thanks again Willi Hoffmann

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  • 1 month later...
17 hours ago, Feli_q said:

How do you solve this???? i have the same problem please

Welcome to the Affinity forums :)

When exporting to a vector format, Affinity converts a path with an inside-aligned or outside-aligned stroke to an un-stroked filled shape with the same visual appearance as the original stroked path.

Solution: ensure the cutting path's stroke is centre-aligned in the Affinity document.

The trio of alignment options are in the Stroke panel.

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Anyone with Adobe history should be aware of the differences between Adobe and Affinity apps as regards stroke alignment, and PDF creation (the latter only supporting center-aligned strokes):

1) Affinity apps only support inside and outside alignment with closed shapes, while e.g. InDesign does not have this limitation. Accordingly when importing IDML, Affinity apps apply center alignment on all open paths without adjusting positions, resulting in flawed design.

a) InDesign:


b) Affinity Publisher (IDML import):


2) When exporting to PDF, Adobe apps adjust the positions of strokes (and dimensions of closed shapes with strokes) so that they stay as strokes but are center-aligned (instead of expanding strokes to closed curves). This can be seen when opening an InDesign created PDF:


Because of these differences, it may be a better idea to transfer Adobe-based jobs containing non-centerline based designs as PDF files rather than as IDML files. I do not currently have AI subscription active so I cannot check whether Illustrator CC versions now also support inside and outside aligned strokes in open paths, but the CS6 version only supports them in closed curves, similarly as Affinity apps.

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