To change image for portfolio slider, you need to modify functions/theme-functions.php file. There is line which looks like below:
add_image_size( 'blog', 576, 450, true ); // blog - list
and all you need to do is change 2 bolded values above.
Also it is possible to setup more than one image for portfolio item. All you need to do is create slide in Revolution Slider section and then while you create/edit portfolio item, you must choose right slider.
On the single portfolio page there is a big image that shows the same image that is set as featured image. But i think its to big. And i tried to change it with adjustment you provided in theme-functions. but nothing changed. It is still as big as it was. Are you sure i need to change the code like you advised because it says "blog". But in want to change the image of the portfolio single page
How do i make this image smaller on the single portfolio page?
The page you sent us is not single portfolio page. This is custom page where inside you used only image item. Nothing else. So we don`t understand what you ask for because this is not definitely you asked for. The single portfolio page looks like this one http://themes.muffingroup.com/betheme/portfolio-item/portfolio-item-image and if you want to change size for this large image (as default it is 1200 x 480px size) you need to do exactly what we described above. In functions/theme-functions.php file is line which looks like below:
add_image_size( 'blog-single', 1200, 480, true ); // blog - single
and you must change bolded values to your own. After that you must upload images for portfolio again or you need to use plugin that we gave you above.
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Comments
to remove share box on portfolio pages, please use below css: But about portfolio image can you explain what you mean? Do you mean to increase image height on the portfolio single page?
Also it is possible to setup more than one image for portfolio item. All you need to do is create slide in Revolution Slider section and then while you create/edit portfolio item, you must choose right slider.
Thanks for understanding!