100% Client-Side — Zero Uploads

Edit PDF Online — Free

Click on existing text to edit it directly. Add new text, highlights, drawings, and images. Export a real PDF — all in your browser with zero uploads.

Choose a PDF file

or drag and drop here

Edit Text Add Text Highlight Draw Insert Image

Edit Existing Text

Click any text in the PDF to edit it directly.

Highlight

Drag to highlight any area in 4 colours.

Freehand Draw

Sketch, annotate, or sign with your mouse.

Insert Images

Drop a PNG or JPEG onto any page.

Free Online PDF Editor

DoctorDocs provides a secure, fully client-side PDF editor. Edit text, add annotations, insert images, and highlight content without uploading your sensitive files to any external server.

Key Capabilities

100% Private & Secure

Unlike other online PDF editors, your files never leave your device. All processing happens entirely within your web browser.

True Inline Text Editing

Click on any existing text in your PDF to edit it naturally. Our engine matches the font and size automatically.

Add Signatures & Images

Drop your signature or any image file onto the page and position it perfectly before exporting.

Frequently Asked Questions

Is it really free?

Yes, our PDF editor is 100% free to use. There are no limits on file size, page count, or number of exports.

Are my files safe?

Absolutely. We use a privacy-first architecture where the actual file processing happens in your browser using JavaScript. We don't upload your PDF to our servers.

Can I use custom fonts?

Yes! If you need to edit text using a specific font, you can load your own .ttf or .otf file using the 'Install' button in the toolbar.

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Edit PDFs Online Without Uploading Them — Free

Local Device Tool (Zero Data Upload)

Adding text, highlights, or a signature image to a PDF usually means uploading it to a third-party editor first. DoctorDocs' PDF Editor runs the whole thing in your browser instead.

Type text anywhere on the page, draw freehand, highlight a passage, or drop in an image — then export a real PDF with your additions layered on top of the original, unaltered document.

Key Capabilities

Overlay text without touching the original

Added text, highlights, and drawings sit on a new content layer above the existing PDF; the underlying text and layout are never altered, so nothing breaks.

Freehand drawing and highlighting

Draw directly on any page with a mouse or touch, or highlight passages, alongside typed text boxes.

Insert and reposition images

Drop a photo, logo, or scanned signature onto any page and drag it into place next to your text edits.

How to Use

Upload your PDF

The file loads directly in your browser — nothing is sent to a server.

Add text, highlights, drawings, or images

Click anywhere on the page to place a text box, draw freehand, highlight a passage, or insert an image; drag any element to reposition it.

Export the edited PDF

Download a real PDF file with your additions baked into a new layer above the original content.

Common Use Cases

Filling non-interactive formsType responses directly onto a scanned or flattened form that has no AcroForm fields — something the Form Filler tool can't do.
Annotating and labeling documentsAdd a handwritten-style note, a page label, or a highlight to a scanned document before emailing or filing it.

Frequently Asked Questions

Are my documents uploaded when I edit them?

No. The PDF editor runs 100% locally in your browser. Your files never leave your device, guaranteeing total privacy for sensitive medical, legal, or financial documents.

Can I edit the existing text in the PDF?

This tool adds new text, highlights, drawings, and images as a layer over the PDF. It does not alter the underlying original text, which prevents breaking the document's existing formatting and layout.