Upload one or more PDFs, drag their pages onto blank A4 sheets, resize and arrange them, brighten dark scans, then export one PDF. Runs entirely in your browser.
Drop one or more PDFs here, or click to add files
Adjust selected image
Click a thumbnail above to drop that page onto the last sheet you clicked on. Click an inserted page to select it — drag anywhere on it to move, its corner to resize, or use the sliders to fix a dark scan.