PDF Starter Guide: Edit, Annotate, Merge, and Sign (No Signup)

Dec 1, 20256 min read

A concise, no-BS walkthrough for editing, annotating, merging, splitting, and signing PDFs entirely in your browser.

Edit text without breaking layout

Open the Edit PDF tool, select text, and adjust font, size, and color. Keep zoom around 125% for precise selection and save incrementally to avoid inflating file size.

Annotate and highlight fast

Use the Annotate tool for rectangles and sticky notes. Keep opacity near 0.3 for highlights and 0.8 for notes to retain background legibility. Export stays local to your device.

Merge or split cleanly

Combine files in Merge PDF and reorder pages before downloading. Use Split PDF for extracting ranges so you only export the slices you need.

Sign securely

Use Sign PDF to draw or type your signature. Place once, duplicate across pages, then export. Everything runs client-side for privacy.