From what it seems, you're exporting the images using scrapbooks and I suggest you export them to JPEG (.jpg), bitmap (.bmp), or TIFF (.tif) format. Select the image/images you want to export and go to File > Export > as Image(s). Select the file format from the drop-down list, type a file name and click Save. For further information, press F1 and expand the Chapter 10 Exporting Images list from the Help file. Also, you can use the contact form from the official web page to get in touch with the developers.