: Text background stands out when printing. What you see on screen is not what you get from the printer Please can you advise me ? I made posters in Inkscape, being equations on coloured backgrounds.

@Michele215

When you blur a vector it is transformed or interpreted as a bitmap (raster) image.

Inside the Inkscape it is still a vector, but the pdf can not interpret that, becouse it is not on the pdf language, so it is converted to a bitmap.

So you now have a bitmap over your other elements. Probably that image is rgb and your background is defined as cmyk.

You need to flatten the image. This is: convert all thoose big zones of color, transparencies, blurred objects to one single bitmap, and you can have sharp elements as vectors, normally texts.

In the case of your image, probably leave the QR codes in vectors if you have them as such.

P.S. I always have 2 copies of thoose kinds of files.

1) My working file. Whith all my effects.

2) A copy which is the one I modify and flaten.

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@Lee3735518

My answer probably doesn't help with your issue from the program itself but you could now just print the SVG from the jsfiddle link.

You have to turn the fill to 0

Change

<rect
style="opacity:1;fill:#63058f;fill-opacity:1;stroke:#ffffff;stroke-width:0.08000001;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
id="rect4291"
width="663.66199"
height="917.18317"
x="-31.549295"
y="-36.983276" />


to

<rect
style="opacity:1;fill:#fffffff;fill-opacity:0;stroke:#ffffff;stroke-width:0.08000001;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
id="rect4291"
width="663.66199"
height="917.18317"
x="-31.549295"
y="-36.983276" />


See example jsfiddle.net/5qs1sffh/
This will take out the background color of the graphic and you are going to be left with the shade of blue or whatever you make the background color. I just removed the color from your SVG graphic.

An alternative to this is to make the background the same color as the background color in the SVG.

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