new script: image compress

README.md

@@ -41,6 +41,11 @@ kill every wine process including processes hanging
 ### webptogif.sh 
 convert animated .webp at $1 (path) to a gif
 
+### image_compress.sh 
+Usage: `./image_compress.sh <input> <output.jpg> <size in bytes>`  
+Compress an image until it's below a specified target size. Output format is JPEG, regardless of the input format.  
+(requires ImageMagick)
+
 ### convert_md_to_pdf.sh
 (need to be used with listings-setup.tex in the same folder, xelatex and pandoc are required)   
 convert infile.md in the current folder to a pdf file (outfile.pdf) with code blocks in red boxes.