We've created several tools that assist in creating PDFs, covers, barcodes, etc.
Eventually, we'll place them all here for you to use, for free.
ISBN-13 Bookland Barcode Generator
Create a vector PDF file or a high-res PNG file
This tool creates a barcode image as a .PDF file, or as a high-res .PNG file ready for printing. The barcode can optionally include the price supplement.
Puts hyphens in the proper place in your ISBN
Were you provided an ISBN with no hyphens, or perhaps just one hyphen? ISBN13s should have four hyphens, but the placement is not the same for every ISBN. This tool determines where they should go.
CreateSpace Cover Template Generator
Create a PDF file, a PNG file, and an ODG file
This tool creates cover template files in PDF and PNG formats, and optionally in ODG format.
The files conform to the CreateSpace cover requirements.
PDF is a vector format, PNG is a raster format, and ODG is for OpenOffice.
Just choose your trim size, number of pages, and paper type, and optional file formats.
You can specify an ISBN if you want a barcode.