I searched high and low for the poison bottle paper and couldn't find it. I was happy to stumble across the digital files of it here. The element pack come as 300 dpi png files. The images size up or down without issue. Just remember to increase the DPI before increasing the image size. They also scale well when needed. The paper packs come as 300 dpi jpg and, best of all, already sized to 12x12. The papers work well sized down to 8.5x11 if you prefer. I've used the papers resized to a variety of formats and papers.
This full collection includes 24 papers in jpeg format and 48 elements in png format.