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How to open a .pub file now that Microsoft Publisher is retired
Microsoft Publisher left Microsoft 365 in October 2026. Here is how to open a .pub file without it, save it as PDF, and what to do when a file will not open.
How to compress a PDF to under 100KB or 50KB for government forms, without uploading it
Why a scanned certificate is so heavy, what actually makes a PDF smaller, real 2026 limits from exam notices, and when 50KB just isn't possible.
How to check if an online PDF or photo tool uploads your file
A simple check anyone can do in a minute with the browser's Network tab, what the results mean, and what to do on a phone.