+ This is also the default action if called with a PDF.
+2. Optional: Generate a preview and/or cropped PDF:
+
+ `./pdfstitch --preview foobar.pdf.stitch`
+
+ This will generate a new PDF called `foobar-preview.pdf`.
+ It contains only the pages you select in the YAML file with each page being overlayed with a transparent box
+ showing the are the page will be cropped to.
+
+ `./pdfstitch --crop foobar.pdf.stitch`
+
+ This will generate a new PDF called `foobar-cropped.pdf`.
+ It contains only the pages you select in the YAML file with each page being cropped accordingly.
+4. Generate the final stitched PDF: