Of 2.5 when used with 12 ga. (2.6) channel safety factor = ratio of ultimate load to the design load). Use 1/2'-13 x 7/8' hex head cap screws and 1/2'-13 (N225 or TN225) channel nuts for the rated results. Note: See page 277 Design Load Data for typical channel - fitting connections. Note: A minimum order may apply on special. If you have a pdf with scanned images, you can use convert (ImageMagick) to create a pdf with jpeg compression (You can use this method on any pdf, but you'll loose all text informations). For example: convert -density 200x200 -quality 60 -compress jpeg input.pdf output.pdf Adjust the parameters to your needs. About PDF Files. Our goal is to help you understand what a file with a.pdf suffix is and how to open it. The Portable Document Format file type, file format description, and Mac, Windows, Linux, Android, and iOS programs listed on this page have been individually researched and verified by the FileInfo team.