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U Ultra PDF Editor

How-to Guide

Annotate a PDF in four steps

This walkthrough covers the entire workflow: uploading a PDF, choosing the right annotation tool, adjusting placement, and exporting a final document with all changes flattened. Everything happens locally in your browser for complete privacy.

  1. Ultra PDF Editor upload screen with drag-and-drop area highlighted.
    1 Step 1

    Open Ultra PDF Editor

    Navigate to the editor page, drop your PDF into the upload area, or click Upload PDF to choose a file from your device.

  2. Toolbar options for text, draw, highlight, and redact tools.
    2 Step 2

    Choose an annotation tool

    Select Text, Draw, Highlight, or Redact from the toolbar. Tool-specific controls (font size, stroke width, color) appear on the right.

  3. Canvas showing text and highlight annotations on a sample contract.
    3 Step 3

    Place annotations precisely

    Click anywhere on the page to drop a text box, drag to draw freehand, or click-and-drag to create highlight/redaction rectangles. Use zoom presets for pixel-perfect placement.

  4. Export confirmation banner with download prompt.
    4 Step 4

    Export the annotated PDF

    Press Cmd/Ctrl + S or click Export PDF. Ultra PDF Editor rebuilds the document using pdf-lib and downloads a new file with your changes flattened in place.

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