Category: Guides

Some documents have to survive. A thesis deposited in a university repository, a contract kept for a legal retention period, a filing a court or government portal accepts…

“Maximum file size: 2 MB.” “Attachment too large.” “Keep it under 500 KB.” Plenty of forms, portals and inboxes demand a PDF below a specific number, and a document that’s…

Two very different requests often arrive in the same breath: “make this PDF final so no one can change it” and “make sure this PDF still opens correctly…

A watermark is the fastest way to give a PDF a status at a glance: DRAFT so nobody mistakes a work-in-progress for the final version, CONFIDENTIAL so a…

A page comes in sideways from a scanner, or upside down from a phone photo, or the pages are simply in the wrong order — and you rotate…

Every day, millions of people drag a contract, a bank statement or a medical letter onto a random website to merge, compress or convert it — and most…

You’ve finished a document, a spreadsheet or a deck, and now you need to send it somewhere it will look right — a job application, a client, a…

A PDF that’s too big is a small daily annoyance with a long list of causes: it won’t attach to an email, a portal rejects it, a page…

“Locking” a PDF and “unlocking” one sound like a simple pair, but PDFs actually have two different kinds of password, and they protect against completely different things. Knowing…

Two of the most common things anyone ever needs to do with a PDF are opposites of each other: put several files together, or break one file apart.…