Adding text, annotations, or highlights to a PDF shouldn't require Adobe Acrobat or a monthly subscription. ModernPDF gives you a capable editor right in the browser — add text...
Open Edit PDFEdit PDFs instantly. Free to start, Pro for unlimited use.
Your document stays on your device. Edits are applied locally — no server processing or cloud storage.
Add text, highlight, draw, underline, strikethrough, and add shapes. Everything you need for document markup.
Adobe charges $23/month for PDF editing. ModernPDF gives you capable editing tools for free — 3 sessions per day.
Drop your document into the editor. Pages render instantly in your browser for a full WYSIWYG editing experience.
Add text boxes, highlight passages, draw lines, insert shapes. Navigate between pages and zoom for precision.
Your edits are baked into a new PDF file. Download it — the original remains unchanged on your device.
Editing a PDF online typically means uploading it to a server, making changes through a web interface that communicates with that server, and downloading the modified version. The document sits on remote infrastructure for the entire session.
For a casual document that's fine. For a contract with confidential terms, a medical form with patient data, or a legal filing — it's an unnecessary risk.
ModernPDF's editor runs entirely in your browser. The PDF is rendered locally, your edits are applied locally, and the final output is assembled locally. No part of the document or your changes ever leaves your device.
You can add text boxes, highlight text, draw freehand, add rectangles and circles, underline, strikethrough, and add sticky notes. For filling in form fields specifically, try our Fill & Sign tool.
ModernPDF adds annotations and overlays on top of the existing content. It does not modify the original text layer. For changing original text, you'd need to convert to Word first using PDF to Word.
Adobe Acrobat is a 500MB desktop application that costs $23/month. ModernPDF runs in your browser with no installation, processes files locally for better privacy, and offers free editing for common tasks. See our full comparison.
Yes. The editor supports undo/redo during your session. You can also remove individual annotations before saving. The original PDF file on your device is never modified.
You can add annotations on top of scanned PDFs. To make the scanned text searchable or editable, run the document through OCR first.
Free to start. Files stay on your device. Upgrade to Pro for unlimited use.
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