## PDF Editing #### Splitting PDFs ``` pdftk input.pdf cat 2-4 output out1.pdf ``` #### Combining PDFs ``` pdfunite input1.pdf input2.pdf output.pdf ``` #### Resizing PDFs' width ``` pdfjam --outfile out.pdf --paper a5paper in.pdf ``` #### Splitting PDFs ``` pdftk input.pdf cat 2-4 output out1.pdf ``` #### Rename photos to date taken ``` jhead -nIMG_%Y%m%d__%H%M%S *.JPG ```