I'm very sorry you are unable to download your newsletter! I took a peek at that campaign, and I tried each method of downloading (PDF, PNG, and JPG). The reason the PDF has some spaces where there shouldn't be is that you have a number of very large, high resolution images. The PDF converter doesn't like to split those images between pages, so it shifts the images around to accomodate. The PNG converter is likely not working due to the filesize that the image would be, again due to the high resolution images. We recommend using the JPG version, as that converter does work for this particular email. If you have any other questions or concerns, please do let us know!