IMG2PDF
This program uses FPDF python module to bring image files together. I created a command line utility to automatically do it with lots of option. The help document explain everything about itself:
This program merges image files in a directory and creates a PDF file. Every
image get put to a page that exact same size as itself.
Usage:
img2pdf+ [OPTIONS] [OUTPUT FILE]
Parameters:
-h, --help : Print this help document and exit.
-d, --dir [DIRECTORY] : Set directory to work on. Default is
working directory.
-q, --quiet : Do not print process details.
-r, --reverse : Reverse image order.
-n, --negative : Invert colors of images. May be useful to
make black & white documents dark.
-g, --grayscale : Make colors shades of gray.
-f, --force : Overwrite to existing PDF file.
-i, --interactive : Prompt before overwrite.
-D, --decline : Do not let overwrite. Ignores --force and
--interactive parameter. This option does
not return any error if file already exists.
-e, --except : Do not include images that have no read
permission.
-s, --selective : Let selecting which image will be
included.
-S, --sort-by [METHOD] : Set sorting method. available methods are:
name (default), m_time (modification time),
c_time (change time).
-p, --page-size [SIZE] : Fixed page size, strech photos to page.
Options are: A4, A3, A5, Letter, Legal,
WITDHxHEIGHT (in pt).
-L, --landscape : Rotate images to landscape. (Do not change if
already is.)
-P, --portrait : Rotate images to portrait. (Do not change if
already is.)
Exit Codes:
0 : Program done it's job successfully.
1 : An error occurred.
2 : Parameter fault. Please check your command.
3 : No valid image file in directory.
4 : User declined overwrite.
5 : File exist and overwrite not allowed.
6 : Directory does not exist.
126 : File permission denied. Check file permissions.
130 : Process terminated by user.