./mangafmt [options] <input_pdf_file> -background string Background color(s) separated by comma. The first color is the main background color. (default "#FFFFFF,#000000") -density float Output density (DPI) (default 300) -format value Output file format. The supported formats - raw (default) - cbz - epub - kepub -fuzz float Color fuzz (percentage)[0.0-1.0] (default 0.1) -grayscale string Page range (Ex. '4-10, 15, 39-') to convert to grayscale. Default is all pages except the first page(cover). 'false' means no grayscale conversion (default "2-") -grayscale-depth uint Grayscale color depth in number of bits. Possible values are 1, 2, 4, 8, 16 bits. No upscale if source image is in lower depth. (default 4) -h Show help -height uint Output screen heigt (pixel) (default 1680) -help Show help -output string Output file. Unspecified or blank means using the same file name as input file -pages string Page range (Ex. '4-10, 15, 39-'). Default is all pages. Open right range means to the end. (default "1-") -right-to-left Right-to-left read direction (ex. Japanese manga) -rtl Right-to-left read direction (ex. Japanese manga) -spread Enable double-page spread detection and connection (default true) -spread-bg-distortion --background A page is considered a single page if the distortion between its edge and background color are less than this threshold (percentage)[0.0-1.0]. Multiple values are separated by comma. It should match with --background otherwise the last value is used for the rest of the list. (default "0.4,0.2") -spread-edge uint Edge width for double-page spread detection (pixel) (default 2) -spread-keep-orientation Keep the page original orientation. Do not rotate to maximize screen area -spread-keep-original Keep the original left and right page -spread-lr-distortion float Two pages are considered double-page spread if the distortion between their edges are less than this threshold (percentage)[0.0-1.0] (default 0.4) -spread-margin uint Safety margin before edge width (pixel) (default 2) -title string Book title. This affects epub/kepub output. Unspecified or blank means using filename without extension -trim Enable trim edge (default true) -trim-margin int Safety trim margin (pixel) (default 10) -trim-min-size float Minimum size after trimmed (percentage)[0.0-1.0] (default 0.85) -v Verbose output -verbose Verbose output -version Show version -width uint Output screen width (pixel) (default 1264) -work-dir string Work directory path. Unspecified or blank means using system temp path 

go install github.com/teerapap/mangafmt@latest 

go build