Edit PDF
Edit PDF files online for free. Add text, images, shapes, highlights, whiteout areas, rotate pages, delete pages, and save your edited PDF securely.
Drag & drop your PDF here
or click to browse from your computer
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Secure
Your files are transferred and processed securely over encrypted HTTPS.
Fast
Edit your PDF files in seconds with our high-performance servers.
Easy to Use
Simple and intuitive interface makes editing PDFs easy and quick.
Edit PDF Files Online for Free
MarsPDF provides a premium, browser-based PDF editor that allows you to edit PDF files online without installing any desktop software or registering for an account. Whether you need to add custom text, insert images, draw annotations, place geometric shapes, or redact sensitive details, our tool gives you full creative control directly in your web browser.
With support for advanced page actions such as rotating, deleting, and inserting blank pages, you can organize your document's layout while refining its content. Everything happens securely and quickly, producing professional-grade documents in a matter of seconds.
How to Edit a PDF Online
Upload Document
Drag and drop your PDF file into the upload zone or click to select a file from your device.
Make Your Edits
Use the toolbar to add text, insert images, draw shapes, highlight sentences, whiteout areas, or manage pages.
Save and Download
Click "Save PDF" to apply your changes, then download the newly edited file securely to your device.
A Complete Toolkit for PDF Editing
Our free PDF editor comes packed with powerful tools to help you modify any document to fit your needs:
- Add Text & Modify Typography: Click anywhere on a page to insert new text. Customize font style, size, text color, alignment, and line height using the right-side properties panel.
- Insert Images: Place JPG, PNG, or WebP images onto your pages. Easily drag to position them or resize using corner handles.
- Draw & Highlight: Use the drawing pencil to sign or sketch, or select the highlighter to emphasize important terms. Set custom stroke colors, widths, and opacities.
- Draw Geometric Shapes: Insert lines, arrows, rectangles, circles, checkmarks, stars, or triangles. Adjust borders, background fill, and element transparency.
Whiteout and Redact PDF Content
Protecting private details before sharing is crucial. MarsPDF includes built-in redaction tools:
Use the Whiteout tool to overlay white boxes over sections of your document, effectively erasing typos or background clutter. For sensitive data like ID numbers, financial stats, or personal contact info, utilize the Redact tool to permanently black out information, ensuring complete confidentiality.
Rotate, Delete, and Manage PDF Pages
Editing isn't just about changing text and drawings; it's also about managing document structure. Our sidebar includes quick controls to rotate selected pages clockwise, delete unwanted pages entirely, or insert blank pages wherever you need extra writing space. Navigate between pages effortlessly using the thumbnail preview strip at the bottom of the workspace.
Secure Online PDF Editing
Your privacy and document security are our highest priority. All files uploaded to MarsPDF are transferred and processed securely over encrypted HTTPS connections. We never access, review, or share your documents, ensuring that your confidential data remains completely safe.
Frequently Asked Questions
Is it free to edit PDF files with MarsPDF?
Yes! Our online PDF editor is 100% free to use. You can edit text, insert images, draw shapes, redact info, and download the edited file without paying any fees or signing up.
Can I change existing text in my PDF?
Our tool allows you to add new text elements and cover existing text using the whiteout tool to replace it. You can also interact with and edit selectable text blocks parsed directly from your document.
Can I delete or rotate pages in the editor?
Yes. The editor features a page management toolbar. You can rotate pages clockwise, delete individual pages, or insert new blank pages into your PDF.
Are my uploaded documents safe?
Absolutely. All file uploads are encrypted via HTTPS.