Drop a PDF, get it back guaranteed at or under 300 KB — recompressed locally, pages sharing one byte budget, floors and ranges handled. Nothing is uploaded.
300 KB is a recurring PDF ceiling on Indian application portals in particular — UGC NET’s PwD certificate slot wants one PDF between 50 KB and 300 KB (both sides of the certificate in a single file — the UGC NET page covers that spec), and India’s e-Visa portal takes the passport bio page as a PDF in a 10–300 KB window (details). If your scan app already produced a PDF that’s over the line, drop it here: pages are re-rendered locally, re-encoded, and reassembled under the cap — and a window with a floor is one field away (type 50-300 KB as the target; a result under the floor gets padded up losslessly inside the last page’s JPEG).
At 300 KB a two-sided certificate scan or a three-page form comes through crisp — document pages are cheap when the byte pool is shared, because blank margins and simple pages subsidise the dense ones. The per-page table shows each page’s size, resolution and quality; if a page of small print comes out soft, set Max edge around 1600 px and re-run — sharper pixels at a modest size beat starved quality at full size.
Output pages are pictures of the pages, not text — nothing stays selectable or searchable, and links, form fields and digital signatures don’t survive. That’s a non-event for scans (already pictures) and a real cost for text-born PDFs, so use it when the portal checks bytes. Pages keep their exact printed sizes; document metadata isn’t copied over; password-protected files need the password removed first; nothing is uploaded. Both certificate PDFs to do? Drop them together — each is recompressed to the target on its own row. And when the portal wants both sides in one file, tick Combine into one PDF: the dropped PDFs (and any images with them) merge into a single PDF inside the same window. Other caps: 100 KB · 200 KB · 500 KB. Photos into a fresh PDF instead: image to PDF.