Are online PDF tools safe? Upload sites vs in-browser tools
What happens to your file on upload sites and in-browser tools, and how to check where it really goes.
Updated 16 October 2026
Guides
Short, practical answers to everyday PDF and photo problems, from files that are too big to upload to iPhone photos that won't open on Windows. Each guide links to the free tools that fix the problem.
Bank statement PDF won't print, merge or compress? Permissions explained
Why statements open fine but refuse to print or merge, what PDF permissions are, and what to do about them.
Updated 16 October 2026
How to prepare a photo and signature for an online application form
Take, crop, resize and compress your photo and signature so they meet the form's size rules.
Updated 17 October 2026
How to reduce PDF size for job, university and visa portals
Combine, trim and compress your documents in the right order so they fit the portal's upload limits.
Updated 16 October 2026
How to send a PDF securely by email
A short routine for emailing sensitive PDFs, from removing pages to adding a password and sharing it safely.
Updated 16 October 2026
How to sign a PDF without printing it
The kinds of electronic signature, when a simple one is enough, and how to sign so it looks like yours.
Updated 16 October 2026
How to turn phone photos of documents into one clean PDF
Photograph documents so they look scanned, then crop, combine and shrink them into one tidy PDF.
Updated 17 October 2026
Online form file limits: KB, MB, pixels and cm explained
What "under 50 KB", "200 × 230 pixels" and "3.5 × 4.5 cm" really mean, and how to meet each one.
Updated 16 October 2026
Why is my PDF so large, and how do I make it smaller?
What really takes up space in a PDF, and the quickest way to shrink each kind of file.
Updated 16 October 2026
Why won't my iPhone photos open on Windows?
Why HEIC photos cause trouble on Windows, and how to choose between extensions, iPhone settings and converting.
Updated 16 October 2026