PDF Editor – Add Text, Images & Annotations to PDF Online
Need to fill out a form, add a comment, or highlight a section in a PDF? Our PDF Editor lets you overlay text, images, and drawings on any page. All editing happens locally in your browser – no upload, no registration, completely private. Perfect for annotations, form filling, and quick markups.
Digital PDF Workspace
Select your PDF file to start the visual editing process. All processing stays in your browser.
Local Processing • 100% Private • Object‑Based Editing
✏️ Why Edit PDF Documents Online?
PDFs are designed to be read, not modified. But in real‑life workflows, you often need to fill forms, add comments, highlight sections, or insert images. Our online PDF editor lets you overlay text, images, and drawings on top of your PDF – all without installing software or uploading sensitive data to the cloud. Common use cases include:
- Filling out forms: Add text to empty fields in non‑interactive PDFs.
- Annotating documents: Draw circles, arrows, or highlights to emphasize content.
- Adding signatures or logos: Insert image files (e.g., your signature or company logo).
- Redacting information: Draw a black box over sensitive data (use the draw tool with black color).
1. Fill Out Job Applications & Government Forms
Many official PDF forms are not interactive – you cannot type directly into them. Instead of printing, handwriting, and scanning, use our editor to add text boxes and fill them out digitally. You can position the text exactly where needed, choose font size and color, and download a clean, professional PDF ready for submission.
2. Annotate Academic Papers & Reports
Students, researchers, and collaborators often need to mark up PDFs – underlining key points, adding comments, or highlighting sections. Our drawing tool allows you to write freehand with your mouse or finger, and the text tool lets you add typed notes. All annotations are saved as part of the PDF when you download the page.
3. Add Logos or Signatures to Business Documents
Freelancers and small business owners can upload their logo or signature image and place it on invoices, proposals, or contracts. The image can be resized and moved anywhere on the page. This gives your documents a professional, branded look without needing expensive design software.
📌 How to Edit a PDF (Step by Step):
- Select your PDF: Click the indigo button and choose the file you want to edit. The first page will load in the canvas.
- Add content:
- Text: Click “Text”, then click on the canvas to start typing. You can drag the text box, resize it, and change its color using the color picker.
- Image: Click “Image”, choose a PNG or JPG file. The image will appear; you can drag and resize it.
- Draw: Click “Draw” to enter freehand drawing mode. Use your mouse or finger to draw or highlight. Click “Draw” again to exit.
- Navigate multiple pages: Use the “Prev” / “Next” buttons to switch pages. You can edit each page separately.
- Save: Click “Save Page” to download the current page as a PDF with all your overlays. Repeat for other pages (the tool saves one page at a time to maintain high resolution).
Note: This editor adds content on top of the PDF (overlay). It does not modify the original text or images of the PDF – it adds new layers. To delete an object, select it and click “Delete”.
🔒 100% Private – No Server, No Upload
Most online PDF editors require you to upload your document to a remote server, exposing your sensitive content to potential breaches. Free PDF Tools uses PDF.js to load and render the PDF, Fabric.js for canvas editing, and jsPDF to generate the final PDF – all entirely in your browser. Your file never leaves your device. No upload, no server logs, no tracking – your edits stay confidential.
⚙️ How the Editor Works Technically
We load your PDF using PDF.js and render the selected page onto an HTML5 canvas managed by Fabric.js. The canvas is interactive: you can add text (Fabric IText objects), images, and freehand drawings. Fabric.js handles dragging, resizing, and rotation. When you click “Save Page”, we capture the entire canvas (background PDF + all added objects) as a JPEG image, then use jsPDF to create a PDF page at the same dimensions. The result is a new PDF file with your overlays flattened onto the page. Because we process pages individually, we maintain high resolution (original scale) and avoid memory issues.
❓ Frequently Asked Questions – PDF Editing
Q: Can I edit the existing text in the PDF (not just add new text)?
A: This tool adds overlays – it does not modify the underlying PDF text. To change the original text, use our PDF to Word converter, edit in Word, then convert back. However, you can “hide” existing text by drawing a white or black rectangle over it.
Q: Why do I have to save each page separately?
A: Processing one page at a time ensures the highest image quality (no compression across pages) and prevents browser crashes on low‑memory devices. After saving each page, you can merge them using our Merge PDF tool.
Q: Can I change the font style or size of the text?
A: Yes. After adding a text box, you can click on it and use the control handles to resize. The color picker changes the text color. For advanced font options (family, bold, italic), you would need a more powerful editor.
Q: Does the editor work on mobile phones?
A: Yes. It works on modern browsers (iOS Safari, Android Chrome). The drawing tool works with your finger, and the text tool brings up the on‑screen keyboard. Note that the canvas may be small on narrow screens – we recommend using a tablet or desktop for complex edits.
Q: Is there a limit on file size or number of pages?
A: No artificial limit – but very large PDFs (e.g., 50+ pages) will take longer to render each page. The editor loads one page at a time, so memory usage is manageable.
Q: Is the tool really free and unlimited?
A: Absolutely. Free PDF Tools is completely free. Edit as many pages as you need – no registration, no watermarks, no hidden fees.
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