I've got some sheetmusic that I want to scan. The source of the
sheetmusic is from a magazine. I want to scan it and print it out at
a later time. Is PDF recommended? Or should I use TIFF?
I'd scan each page to a separate TIFF, since TIFFs are easy to edit if
necessary. PDFs are basically write-once; once you've gotten your data
into a PDF, it's insanely difficult to edit it in any useful way.
Which one would have a smaller file size?
Your "scan to PDF" almost certainly just wraps a set of PDF instructions
around each TIFF, so the PDF will be larger than the sum of all the
TIFFs' sizes by a few K.
You can decrease the file sizes by trying different compression methods
on your TIFFs. The smallest is G4, but that method only works on
black-and-white data. If you have to scan in grayscale and you need
lossless compression, use LZW since Unisys's damned stupid LZW patent is
no longer valid. If you don't mind lossy compression and you need
grayscale, use JPEG-TIFF if your software can handle that--many
commercial and some Free packages can't. Best bet is probably to use
ImageMagick or something to convert TIFF->JPEG directly if you decide
JPEG is OK. Don't scan in color unless you absolutely have to.