poppler-utils
PDF conversion tools and utilities.
- pdffonts — font analyzer
- pdfimages — image extractor
- pdfinfo — document information extractor
- pdfseparate — page extractor
- pdftocairo — PDF to PNG/JPEG/PDF/PS/EPS/SVG converter using cairo
- pdftohtml — PDF to HTML/XML/PNG converter
- pdftoppm — PDF to PPM converter
- pdftops — PDF to PostScript (PS) converter
- pdftotext — PDF to text converter
- pdfunite — PDF merging tool
img2pdf
The program will take image filenames from commandline arguments and output a PDF file with them embedded into it. If the input image is a JPEG or JPEG2000 file, it will be included as-is without any processing. If it is in any other format, the image will be included as zip-encoded RGB. As a result, this tool will be able to lossless wrap any image into a PDF container while performing better (in terms of quality/filesize ratio) than existing tools in case the input image is a JPEG or JPEG2000 file.
ImageMagick
convert image.jpg doc.pdfconvert image*.jpg doc.pdf