If I make an image of say 500x100 px. The size of the image saved takes account of the size of the background canvas s, hence the actual size is much larger.

How can I make sure the saved image is the size I set for the image, in this case 500x100 px.

The page borders gets stored, if you look the svg through a browsers, only that part will be displayed.
Everything out of that area will be discarded.




If you want to "force" all object inside the canvas borders, then group them together and use a page-sized rectangle for clipping the group.

The point is, I am trying to create an image of a particlar size that I can use on a third-party website that has a size restriction.

Surely, I should be able to create an image size of my choice, but I need to make the canvas the same size.

After you finish drawing your image, at the size you need, go to File menu > Document Properties > Page tab > Custom Size > Resize page to content. That will make the page exactly fit either everything on the canvas, or whatever you select.

Also, it sounds like you possibly may be unaware that when you open a new blank document, it's at 35% zoom (one of the silliest defaults, imo). So whatever you draw at 35% zoom will really be much larger when it's shown at 100%.

Yes, that worked.

I note that the Top margin, left, right, and botton are all at 0.

Do these parameters relate to the rectangle drawn around the image?
In other words, there is no free space.

anon_private wrote:Yes, that worked.

I note that the Top margin, left, right, and botton are all at 0.

Do these parameters relate to the rectangle drawn around the image?
In other words, there is no free space.

The dimensions are used to set Inkscape's canvas size, which is usually represented by a rectangle on the screen, but that can be turned off. The canvas corresponds to the viewport/viewbox used in the SVG file, so anything outside that rectangle will be hidden when the file is loaded into a web browser, as Lazur mentioned. Within Inkscape, however, it is possible to place object outside the canvas area, which can be used as a means to place shapes that only partially appear in the final image. It can also be used to "hide" notes, reference images, development tests and so on "outside" of your image. I use this approach a lot to hide Easter Eggs in my webcomics that aren't visible on the PNG version, but can be found by downloading the Inkscape SVG file.

On the subject of PNGs, it sounds like you might need to create a bitmap image for the site you're using, rather than uploading an SVG file. In that case set the canvas dimensions to the size you want, then use the "Page" option in the Export Bitmap dialog to produce a PNG of the right size.

ok

But what do all those zeros mean

anon_private wrote:But what do all those zeros mean

By selecting objects to include in the page, the fields allow setting margins before clicking the Resize button.

I think that I understand.
Referring to the figure.
The large black rectangle is the page and is 10x10 px with a 2px margin (not page).

Am I correct?

The margin is also the page.

The large black rectangle is the page border with shadow displayed.
It was made by resizing the page to selection, with 2 px margin settings, so it's size is
2 px left margin + 10 px selected objects bounding box width + 2 px right margin for width,
and similarly 2 px top margin + 10 px selected objects bounding box height + 2 px bottom margin width,
which is 14 px/14 px.

Thank you