I run a creative team who create web display banners in a variety of formats - social as well as the google web banners
At the moment they create every banner separately. One at a time. Takes so much work and not best use of their talent.
I'm looking at software that automatically resizes a banner to all the other formats. As they currently use Adobe for graphic creation would Adobe Spark offer this solution? Or is it only social dimensions where auto resizing is an option?
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Be careful what you wish for. You can't fit a square design into a rectangle any more than you can fit a horizontal design into a vertical one. All banner ads must begin life at the correct size and orientation, usually from a pre-built starter template.
Changing size and orientation at the end is not something good designers do for risk of clipping or grossly distorting the design & its content. When minor adjustments are required, the designer knows how to do that in their graphics app of choice -- Photoshop, Illustrator, InDesign, etc... while maintaining the design's integrity.
So to answer your question, no. Spark is NOT the right tool for this.
Nancy O'Shea, Adobe Product User & Community Professional Alt-Web Design & Publishing ~ Web : Print : Graphics : Media