As of 2015, U.S. Citizenship and Immigration Services offers a printable PDF version of form I-130 under the "forms" menu option on the home page of its website, USCIS.gov. The option redirects the user to a page with a complete listing of all forms available, listed alphabetically, on the site.
This USCIS.gov forms page features a listing for I-130, Petition for Alien Relative. From that link, the user is directed to a page where the PDF version can be selected and printed. The page also offers detailed information about the form, its purpose, its last revisions and where to file as well as two additional PDF forms. Instructions for filling out the I-130 are available as a downloadable PDF, as is the form G-1143, E-notification of Application/Petition Acceptance.