Edit & Annotate PDF
Edit and annotate PDF files directly in your browser. Add text annotations, highlight areas, draw freehand, add lines and arrows, insert shapes, and sign with a drawn or typed signature. All processing is local — your PDF is never uploaded.
About the Edit & Annotate PDF
An online PDF editor allows you to annotate, sign, highlight, add text, draw shapes, and insert images directly onto PDF documents without requiring expensive desktop software subscriptions.
Whether filling out PDF forms, signing rental agreements, reviewing architectural drawings, or proofreading student essays, this tool provides a complete suite of editing tools: text insertion with font customization, freehand drawing pens, digital signatures, rectangle and ellipse annotations, and image stamps.
All editing operations take place natively in your web browser. Your private contracts, employment paperwork, and confidential documents remain securely on your local device without being uploaded to third-party cloud servers.
Opening a 4-page apartment rental agreement, typing full name and date into form fields, drawing a clean digital signature with the signature tool, and downloading the completed, signed contract in under two minutes.
Tips for best results
- Create and save your digital signature once to quickly stamp it onto future documents with consistent sizing and quality.
- Use the zoom controls to inspect fine print and position annotations with pixel-level precision.
- Flatten the PDF upon saving if you want your annotations and signatures permanently baked into the document content stream.
How to use the Edit & Annotate PDF
Why use Toolseza for Edit & Annotate PDF?
Use this tool as often as you need with no paywalls, premium tiers, or hidden daily calculation quotas.
All calculations and file manipulations run inside your web browser. Your inputs are never sent to a cloud server.
Results update in real-time as you type or adjust settings, with instant one-click copy and export capabilities.
Works natively on smartphones, tablets, laptops, and desktop computers with zero installation or account creation.
Editorial Standards & Verification: All formulas, algorithms, and conversion factors implemented on Toolseza adhere to openly documented international standards (ISO, NIST, BIPM, W3C). Results are verified against benchmark reference datasets before publication.
Frequently Asked Questions
Is Toolseza PDF Editor free?
Yes. The PDF editor is completely free to use and requires no account or signup.
Does Toolseza upload my PDF?
No. Your PDF is processed entirely in your browser using PDF.js and pdf-lib. Your file never leaves your device.
Can I add text to a PDF?
Yes. Use the "Add Text" tool to click anywhere on the PDF and place a text annotation. You can choose the font, size, bold, italic, and color.
Can I edit existing PDF text?
Yes. Switch to "Edit Text" mode to click on any existing text in the PDF to modify it, change its font, or move it. Note: this works best on text-based PDFs and not scanned images.
Can I sign a PDF?
Yes. Use the Signature tool to draw your signature with a mouse or touchscreen, type your name in a script font, or upload a signature image. Then place it anywhere on the PDF.
What annotation tools are available?
The editor includes: Select, Edit Text, Add Text, Highlight, Pen/Draw, Line, Arrow, Rectangle, Ellipse, Signature, and Eraser tools.
Can I annotate multiple pages?
Yes. Use the page navigation or the thumbnail sidebar to switch between pages. Annotations on all pages are included when you download.
How do I delete an annotation?
Switch to the Select tool, click an annotation to select it, then press Delete/Backspace or click the Delete button in the Properties panel. In Eraser mode, just click any annotation to remove it.
Can I use Toolseza on my phone?
Yes. The editor supports touch drawing and works in modern mobile browsers. Touch with your finger to draw, highlight, or sign.
Will annotations be embedded in the downloaded PDF?
Yes. When you download, all your annotations are baked into a real PDF that opens correctly in any PDF viewer.