The Most Secure Way to Edit PDFs Online
Traditional PDF editors force you to upload your sensitive files to arbitrary servers. This poses a massive privacy risk for your assignments, personal records, and confidential data. Our PDF Editor operates entirely client-side, giving you peace of mind.
What Can You Do with This Editor?
- Add custom text anywhere on any page with full formatting control (bold, lists, font size, and color).
- Upload and place images (PNG or JPG) onto your PDF pages — drag, resize, and position freely.
- Extract embedded images from the original PDF and move or delete them interactively.
- Use the Mask Tool to draw white rectangles over text or content you want to visually remove.
- Navigate multi-page documents and edit each page independently.
- Export your edited PDF with all changes baked in — download instantly.
How to Edit a PDF in 3 Steps
- Upload your PDF file using the drag-and-drop zone (up to 50 MB).
- Use the toolbar to add text, insert images, move existing images, or mask unwanted content.
- Click "Export PDF" to download your edited document — no sign-up required.
How Does It Work Under the Hood?
We use pdf.js (Mozilla's PDF rendering engine) to display your document and extract its embedded images. All editing happens via an interactive canvas overlay. When you export, pdf-lib serializes your changes — text, images, masks — directly into the PDF binary. Your file never leaves your device.PDF to Word
Your Privacy, Guaranteed
Unlike cloud-based PDF editors that store your files on remote servers, Adawati processes everything locally in your browser using WebAssembly and modern JavaScript APIs. No uploads, no accounts, no data retention.
Pro Tips for Better Results
- Use the Mask Tool to cover sensitive information like phone numbers, emails, or student IDs before sharing.
- Drag extracted images to rearrange the visual layout of scanned documents.
- Combine with our PDF to Word tool to extract editable text from image-heavy PDFs.
- For best text quality, use a font size of 14px or larger when adding annotations.
Need to convert your PDF first? Try our PDF to Word tool.
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Frequently Asked Questions
Is this PDF editor really free?+
Yes, 100% free with no hidden fees, watermarks, or sign-up required. All processing happens in your browser.
Can I delete text from a PDF?+
Yes! Use the Mask Tool to draw a white rectangle over any text you want to remove. The masked area appears blank in the exported PDF.
Can I move images inside a PDF?+
Absolutely. When you upload a PDF, embedded images are automatically extracted and become draggable. Move them anywhere on the page or delete them entirely.
Is my file uploaded to a server?+
No. Your PDF is processed entirely in your browser. The file never leaves your device — we use client-side JavaScript libraries (pdf.js and pdf-lib) for all operations.
What is the maximum file size?+
You can upload PDF files up to 50 MB. For larger files, consider using our PDF Compress tool first.
Does it work on mobile?+
Yes, the editor is fully responsive and works on smartphones and tablets. For the best editing experience, we recommend a desktop or laptop browser.