PDFlex: Edit & Sign

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About this app

PDFlex is a fast, modern and lightweight PDF editor designed to let you modify documents directly on your phone.
Edit text, remove words, add new content, insert signatures, adjust metadata, highlight search results, export pages and more — all in one clean and easy-to-use interface.

Whether you need to fix a typo in a contract, insert missing text, sign a form, hide sensitive information or export a single PDF page for sharing, PDFlex gives you complete control without requiring a computer.

Key Features:
Edit Existing Text
• Tap any word to edit it
• Change text color, style, and size
• Automatically cover original text with a clean white background
• Completely remove selected words

Add New Text Anywhere
• Place custom text anywhere on a page
• Choose font style, size, and color
• Perfect for notes, comments, corrections, or annotations

Add Handwritten Signatures
• Draw your signature directly on the screen
• Place it anywhere on the PDF
• Adjust size and position easily

Smart Search
• Search through the entire PDF
• Highlights all matches
• Navigate quickly through results
• Works even with multi-page documents

Export & Capture
• Export the current page as a PDF
• Save any page as a high-quality image
• Save directly to Pictures/PDFlex or Documents/PDFlex

PDF Metadata Editor
• Edit Title, Author, Subject and Keywords
• Useful for organizing or preparing documents for sharing

Undo Support
• Undo last changes for text edits, inserted elements and signatures

Multi-Page Navigation
• Fluid page navigation with next/previous controls
• Page counter with clean UI

Save & Save As Copy
• Apply edits to the original file
• Export edited documents as a separate copy (filename edited.pdf)

Modern and Clean Design
PDFlex is built with a fresh UI, smooth animations and a layout optimized for both phones and tablets.

Fast, Private & Offline
• Works fully offline
• No file uploads
• Your documents stay on your device
• No unnecessary permissions

Perfect For
• Contracts
• Invoices
• School documents
• Work forms
• Scanned PDFs
• Manuals
• Any document that needs quick fixes or annotations

Why Choose PDFlex?
It combines PDF editing, text replacement, annotation, signatures and page exporting into one easy tool — without subscriptions or complicated menus.

What’s new

Initial release of PDFlex.

• Fast PDF viewer with clean and modern UI
• Highlight and search text inside PDFs
• Edit pages: draw, add shapes, mark corrections
• Save individual pages as PDF or image
• Automatic PDF discovery from device storage
• Light and Dark theme support
• Optimized for speed and low memory usage

Thank you for trying PDFlex!