< class="breadcumb-title text-anim" data-cue="slideInUp" data-delay="300">PDF Editor
Professional PDF Editor — Edit Text, Merge, Protect, Watermark | ASLI FORM
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Add Watermark
Protect PDF with Password
Merge PDF Files
Split PDF
Add Signature

Why Professionals Choose Our PDF Editor

Built with enterprise-grade security and premium design, our PDF editor meets the demands of lawyers, accountants, engineers, and businesses worldwide.

  • Edit Existing PDF Text Click on any text in the PDF to edit, modify, or replace it while maintaining layout
  • Merge & Split PDFs Combine multiple PDFs or extract specific pages with ease
  • Password Protection Add or remove password protection with custom permissions
  • Advanced Watermarks Text, logo, or image watermarks with color, opacity, and rotation controls
  • 100% Private & Secure Files never leave your device. All processing happens locally in your browser.
  • Free Forever No subscriptions, no limits, no ads, no hidden fees. Ever.

How to Edit PDF Online

Our PDF editor is designed for simplicity and power. Follow these steps to edit your documents like a professional.

  • Open PDF Click 'Open' or drag and drop your PDF file into the editor
  • Edit Existing Text Click 'Edit Text' tool, then click on any text in the PDF to modify it
  • Add Elements Use toolbar tools to add text, images, shapes, signatures, watermarks
  • Customize Use the properties panel to change colors, fonts, sizes, opacity, and more
  • Save PDF Click 'Save' to download your edited document with all changes applied

Frequently Asked Questions

Yes! Use the Edit Text tool (pen icon) to click on any existing text in the PDF. The text becomes editable and you can:
  • Modify the text content
  • Change font, size, and color
  • Delete the text entirely
  • Replace with new text
The editor creates an editable overlay that covers the original text, allowing you to make changes while maintaining the document layout.
Yes! Click the Merge button in the toolbar to combine multiple PDF files into a single document. You can select multiple PDF files and they will be merged in the order you select them. The merged PDF preserves all pages, formatting, and content from the original files.
Yes! Click the Protect button to add password protection. You can set:
  • User Password — Required to open the PDF
  • Owner Password — Required to modify permissions
  • Permissions — Control printing, copying, and editing
The PDF will be encrypted and require the password to open.
Yes! If you know the password, click the Unlock button. Enter the current password and the PDF will be saved without password protection. This is useful when you need to edit a password-protected PDF or share it without restrictions.
We support three types of watermarks:
  • Text Watermark — Custom text with font, size, color, opacity, and rotation
  • Logo Watermark — Upload your company logo (PNG, JPG, SVG)
  • Image Watermark — Any image file as watermark
All watermarks can be:
  • Positioned (center tiled, or single position)
  • Rotated (-90° to 90°)
  • Opacity adjusted (5% to 100%)
  • Colored (for text watermarks)
Yes, the ASLI FORM PDF Editor is 100% free forever. There are no registration requirements, no usage limits, no subscription fees, and no hidden charges. We do not display advertisements and we do not collect any personal data. Our mission is to provide a premium PDF editor that everyone can use without barriers.
No. Absolutely not. All PDF editing happens entirely in your browser using JavaScript libraries (Fabric.js, pdf-lib, PDF.js). Your files never leave your device, never touch our servers, and are never stored anywhere. This ensures complete privacy and security, making our editor ideal for sensitive documents like legal contracts, financial records, and medical files.
Yes. Once the page loads, all editing features work without internet connection. There is no server-side processing, no API calls, and no internet dependency. This makes the editor perfect for secure environments, remote locations, airplanes, and anywhere connectivity is limited.
We provide 40+ editing tools organized into categories:
  • File: Open, Save, Download
  • Edit: Undo, Redo, Edit Text
  • Selection: Select, Move, Resize, Rotate, Delete, Duplicate
  • Add: Text, Images, Shapes, Lines, Arrows
  • Draw: Freehand drawing, highlighter, eraser
  • Annotate: Signatures, stamps, watermarks
  • Page: Rotate pages, delete pages
  • Tools: Merge, Split, Compress, Protect, Unlock
  • Properties: Colors, fonts, sizes, opacity, stroke, fill
Click the 'Save' or 'Download' button in the toolbar. Your edited PDF will be downloaded to your device with all changes applied:
  • All text, images, shapes, and annotations are embedded
  • Original PDF quality is preserved
  • File is saved with a new name (edited-*.pdf)
  • No watermarks or branding added
You can also use Ctrl+S keyboard shortcut to save.

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