Edit PDFs Without Installing Software

Gone are the days of downloading expensive PDF editors. With SemPDF's online PDF editor, you can annotate, sign, and modify PDFs right in your browser.

What Can You Do?

Our PDF editor supports:

• Add text — click anywhere to add custom text with different fonts and sizes
• Draw shapes — rectangles, circles, lines, and arrows
• Freehand drawing — sketch or highlight with a pen tool
• Add signatures — draw or upload your signature
• Highlight text — mark important sections with color overlays
• Add images — insert logos, stamps, or photos
• Edit existing text — modify text directly in the PDF

How to Edit a PDF Online

Step 1: Upload Your PDF

Go to sempdf.com/pdf-editor and upload your file.

Step 2: Use the Toolbar

Select a tool from the toolbar:

• Text tool — click to add text


• Shape tools — draw rectangles, circles, lines


• Pen tool — freehand drawing


• Signature — add your signature


• Select tool — move and resize elements

Step 3: Edit and Annotate

Click on the PDF to add your edits. Use the color picker and size controls to customize.

Step 4: Download

Click "Download" to save your edited PDF with all annotations embedded.

Tips for Better Editing

• Zoom in for precise placement — use the zoom controls (50% to 250%)
• Use the select tool to move or resize annotations after placing them
• Multi-page support — navigate between pages using thumbnails
• Undo/Redo — press Ctrl+Z / Ctrl+Y for quick corrections

Is It Really Free?

Yes! Adding text, shapes, signatures, and images is completely free. No account needed. No watermarks added.