Top 10 PDF Tricks You Should Know

PDFs are everywhere — contracts, résumés, invoices, scanned forms. Yet most people still email files back and forth or pay for bloated desktop software to make small changes. You don't need to. Here are ten PDF tricks you can do in seconds, free, without installing anything and without your files ever leaving your device.

1. 1Merge several PDFs into one clean document before you send it — no more "see attachments 1 of 4".
2. 2Split a long PDF into parts, or pull out just the pages you need to share.
3. 3Compress a heavy PDF so it slips under email size limits without looking terrible.
4. 4Add page numbers to a report so reviewers can actually reference sections.
5. 5Stamp a watermark like "DRAFT" or "CONFIDENTIAL" across every page.
6. 6Sign a document by drawing your signature and dropping it exactly where it belongs.
7. 7Rotate pages that were scanned sideways or upside down.
8. 8Delete or reorder pages to fix a document without redoing it.
9. 9Extract the text from a PDF when you need to quote or reuse it.
10. 10Convert each page to an image (JPG) for slides, thumbnails or previews.

Why browser-based beats desktop apps

Everything above runs as code inside your browser tab, so your file is processed on your own computer and never uploaded to a server. That means it's faster (no upload/download round-trip), more private (nothing to leak), and free (no subscription). For most everyday edits, that's all you need.

A quick workflow example

Say you're sending a signed contract. Merge the pages into one PDF, add your signature, drop in page numbers, then compress it so it emails cleanly. Four tools, under a minute, done — and the finished file is the only thing that ever leaves your device.