Technical discussion: PDF vs. JPG
Let's get technical: PDF vs. JPG.
My recent presentation of the Polk Salad Annie cover contained a download link for a pdf-file.
Mark uttered the thought that the pdf-format might detain some people using this design. However, I chose the pdf-format deliberately, and here are my reasons.
Usually, we upload jpg-files with resolutions varying from 150 to 300 dpi (200 dpi being most usual). However, since finding adequate pix in good resolution can become a real hazard sometimes, most of us are often forced to blow up pix (which always shows, if you have an eye for it).
The pdf-fomat offers the possibility to combine pix with different resolutions, so that you don't have to resize high res pix to the highest possible resolution of the worst picture in the whole design.
Moreover, and even more important, in pdf-files typefaces are embedded as vector graphics (or even editable text if you like) and are not pixelated, which makes small sized text illegible on covers with a resolution of 150 or 200 dpi. Thus, even sizes as low as 4 point remain crisp and sharp in pdf-files.
I added a printing guide as a Read me-file to the download archive containing instructions how to convert the pdf- into a jpg-file. So, anybody having Adobe Photsoshop or some other powerful image software is still free to use the jpg-format.
Let me know your thoughts about this.