Is there a good free tool to properly redact PDFs? My workflow is to place black annotation rectangles on top and then print as PDF with "force rasterization" on. The resulting PDF files then just consist of pages with one image each. But this tends to be really suboptimal, because it's usually a grayscale or color rasterization, so file sizes are very large vs. monochrome PDFs with CCITT G3/G4 compression (which is absolutely what you want for text content, excellent compression and lossless). Post-processing PDFs to convert them to CCITT is rather annoying and I only know of CLI ways.