Where a 200KB limit comes up
200 KB is a common cap on scholarship, admission and job application forms, on some tax and social security sites and on many visa portals that ask for several short documents. It is enough for a clear certificate or a short letter, but not for a color scan straight from a phone.
The target is already set to 200KB. You can type another limit in KB, and several PDFs can be added at once and downloaded together as a ZIP.
Digital PDFs and scans at 200KB
Documents created on a computer, such as a CV, an invoice or a letter with a logo, usually reach 200 KB by recompressing their images alone. Text, links and fonts stay as they were, so the file is still searchable.
A scanned document of one or two pages often fits too. Longer scans may need the fallback: pages are turned into images at 110 DPI and lower until the file fits. Text then stays readable but cannot be selected, and the row says so.
Getting more room
Every page costs space, so delete blank or duplicate pages first. If you are building the PDF from phone photos, crop them to the paper edge before using Image to PDF; the dark background around a document wastes bytes.