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I have a drawing using Adobe Ideas app in iPad, then export it to PDF to open it with Inkscape. It is a vector image since I can enlarge it as much as I want. However the width of the stroke too big when I enlarge so I want to reduce it. When I double click on it, the result appears as the picture below and I don't know how to resize it. Do you know how to achieve my purpose? Thank you.

Beside Inkscape, I can use Illustrator.

enter image description here


Here are my file and my screen shot of the top bar: enter image description here

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When you double click on a path in Inkscape, you enter in node editing mode and you can edit the path.

You can return to select mode by clicking the arrow in the toolbar on the left (or by hitting the keyboard shortcut, usually F1):

Inkscape toolbar

In select mode you can resize or rotate your shape.

You can change the stroke attributes using the button on the top toolbar.

Other Inkscape tools

The behaviour of the stroke while resizing depends from the status of the buttons on the top toolbar (see above and give a look here).


Postil

Regarding your file, after the import in Inkscape you see the structure of your image by changing the Display Mode to outline:

outline mode

The contour is made by the difference of two closed paths, each eye is a closed path, the smile is a closed path and there is an open path (perhaps a test?):

outline mode explained

Let's return to Normal mode. Select the object and ungroup it by clicking Shift-Ctrl-G until you got a message of no more groups to ungroup.

Select just the "cloud" (the contour of your face) and change fill and stroke, e.g. with a blue fill and a black stroke of 5 px:

reveal the shape

As you see, in this way you have evidence that the "cloud" is not a path with a heavy stroke, but is a composition of an internal and an external path.

In order to have a single path, you must select your "cloud" and Break Apart them with Shift-Ctrl-K:

break apart the paths

Now, delete one of the paths (the internal, in my example) and change stroke and fill as desired.

A similar operation should be made on the mouth (you can cut the path and keep an open path). And perhaps to the eyes.

In this way, you can scale the image maintaining the stroke attributes:

final image


Conclusions

In my opinion, such an operation (doodle with a tablet, export and import in a vector graphics editing program) is possible, but you need a bit of work to adapt the result to your specific needs.

It could be simpler if you have in advance an idea of the desired result: you can choose the proper tool from the beginning.

  • I get the same result that the OP in your linked question met: it doesn't work. I use Win 8.1 and just downloaded Inkscape some days ago. – Ooker Oct 30 '14 at 23:40
  • I'm using Windows 8.1 too, with the latest version of Inkscape. Can you share your SVG file and a screenshot of the top toolbar? – Paolo Gibellini Oct 31 '14 at 8:52
  • Since the origin is in PDF type, I'll upload it. Please see my update. Thanks for your help. – Ooker Oct 31 '14 at 10:48
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    Thanks. I'll try to work on that. If I still can't work it out, I'll inform you. – Ooker Oct 31 '14 at 11:06
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    very helpful. Thank you. I didn't notice that you had edited your answer. You should ping me to that I could know that. – Ooker Jun 5 '15 at 10:38
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Adobe Ideas essentially uses the Blob Brush to draw. This means it expands artwork and nothing remains as a stroke. Everything becomes a shape.

In Illustrator...

An easy way to reduce the width of a shape, especially in a black and white image, is to add a white stroke to the shape.

Then select the shape and choose Object > Expand.

Then click the Merge button on the Pathfinder Panel

And lastly, select the white shapes and delete them.

  • I can't find the Expand on the Object menu – Ooker Oct 29 '14 at 17:50
  • I don't really know what to tell you, it's there -- grey if you haven't added a stroke or selected something and black (live) if you have. – Scott Oct 29 '14 at 17:51
  • I currently use Inkscape. Are you talking in Illustrator? – Ooker Oct 29 '14 at 18:02
  • Yes.. I was referring to Illustrator. You tagged this with Illustrator. I should have been more clear. – Scott Oct 29 '14 at 18:28
  • When choosing Object > Expand, which box should I choose? Fill and Stroke boxes are available. – Ooker Oct 29 '14 at 18:44

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