Set a target in MB and hit exactly that size. 100% free — no login, no email, no sign-up. Processed in your browser, never sent to any server.
500 KB is one of the strictest limits you'll meet: embassy and consulate portals, exam registration systems, and older government forms often cap uploads at 500 KB — sometimes even less. A single scanned page at normal quality can blow past it.
PDF Shrink targets 500 KB directly and finds the highest readable quality that fits. At limits this tight, quality trade-offs are real — the app squeezes as much clarity as the cap allows, and warns you honestly if the target can't be reached.
100% free — no login, no email, no watermark. Your file is processed in your browser and never sent to any server. Set the target to 500 KB and you get exactly that.