PDF Viewer & Reader

How to Use the PDF Viewer & Reader

Overview

This is a fully functional, mobile-friendly PDF viewer that works entirely in your browser. No data is uploaded to any server – your privacy is fully protected!

Key Features

• 100% Privacy Protected: All processing happens locally in your browser

• Large File Support: Upload PDFs up to 200MB

• Multiple View Modes: Single page, vertical scroll, or horizontal scroll

• Full Mobile Compatibility: Works perfectly on phones and tablets

• No Installation Required: Works directly in your web browser

Getting Started

1. Loading a PDF

You have three ways to load a PDF:

Method A: Upload from Computer

1. Click the upload area (the box with the PDF icon) OR

2. Drag and drop a PDF file directly onto the upload area OR

3. Drag and drop onto the main viewer area

Method B: Load Sample PDF

• Click “Quick Sample PDF” to instantly load a 3-page demo document

• Perfect for testing all features immediately

Method C: Load from URL

1. Click the “From URL” button

2. Enter a direct link to a PDF file

3. Click “Load PDF”
   Note: The PDF must be publicly accessible

2. Navigation Controls

Page Navigation:

• ◀ Previous: Go to previous page

• Next ▶: Go to next page

• ⏪ First: Jump to first page

• Last ⏭: Jump to last page

• Page Selector: Dropdown to jump to any specific page

Zoom Controls:

• Zoom In (+): Increase zoom by 25%

• Zoom Out (-): Decrease zoom by 25%

• Zoom Slider: Adjust zoom precisely from 25% to 500%

• Fit Width: Automatically adjust to fit screen width

• Fit Height: Automatically adjust to fit screen height

• Actual Size: Reset to 100% zoom

3. View Modes

Change how you view the PDF:

• Single Page: View one page at a time

• Vertical Scroll: Scroll through all pages vertically

• Horizontal Scroll: Scroll through pages horizontally (like a book)

4. PDF Manipulation

Rotation:

• Rotate Left: Rotate counter-clockwise by 90°

• Rotate Right: Rotate clockwise by 90°

Actions:

• Download: Save the current PDF to your device

• Print: Open browser’s print dialog

• Clear: Remove the current PDF from viewer

5. Mobile-Specific Features

Touch Gestures:

• Pinch to Zoom: Use two fingers to zoom in/out

• Swipe: Swipe left/right to change pages (in single page mode)

• Tap: Tap on page edges to navigate

Mobile Optimized:

• Larger touch targets for all buttons

• Simplified layout on small screens

• Responsive controls that adapt to screen size

Advanced Usage Tips

1. Keyboard Shortcuts (Desktop)

• Arrow Left: Previous page

• Arrow Right: Next page

• Ctrl + +: Zoom in

• Ctrl + –: Zoom out

• Ctrl + 0: Reset zoom to 100%

2. Performance Tips for Large Files

• For PDFs over 50MB, use Single Page view mode

• Reduce zoom level for faster rendering

• Close other browser tabs to free up memory

3. Printing Tips

• Use Actual Size (100% zoom) before printing

• For best results, use Fit to Page in print settings

• Consider downloading and printing from native PDF viewer for very large documents

Troubleshooting

Common Issues & Solutions:

1. PDF Won’t Load

• ✅ Check file is actually a PDF (should end with .pdf)

• ✅ Ensure file size is under 200MB

• ✅ Try a different PDF file to test

• ✅ Check browser console for errors (F12 → Console)

2. Slow Performance

• ✅ Use Single Page view mode for large PDFs

• ✅ Reduce zoom level

• ✅ Clear browser cache

• ✅ Close unnecessary browser tabs

3. Buttons Not Working

• ✅ Ensure PDF is fully loaded (check loading indicator)

• ✅ Refresh the page if issues persist

• ✅ Try using a different browser (Chrome/Firefox recommended)

4. Mobile Display Issues

• ✅ Rotate device to landscape for better viewing

• ✅ Use Fit Width option for optimal mobile display

• ✅ Enable “Desktop Site” in mobile browser if needed

Privacy & Security

What We DO NOT Do:

• ❌ Upload your PDF to any server

• ❌ Store your files anywhere

• ❌ Track your usage or viewing habits

• ❌ Share your data with third parties

What We DO:

• ✅ Process everything locally in your browser

• ✅ Use open-source libraries (PDF.js, jsPDF)

• ✅ Clear all data when you close the tab

• ✅ Provide 100% client-side processing

Technical Specifications

Supported Formats:

• ✅ Standard PDF files (.pdf)

• ✅ Password-protected PDFs (if password is known)

• ✅ PDFs with embedded images and fonts

Browser Compatibility:

• ✅ Google Chrome (Recommended)

• ✅ Mozilla Firefox

• ✅ Microsoft Edge

• ✅ Safari (iOS/Mac)

• ✅ Opera

File Size Limits:

• Maximum: 200MB per file

• Recommended: Under 100MB for best performance

• Optimal: 10-50MB for smooth experience

Quick Start Checklist

To get started in 60 seconds:

1. Click “Quick Sample PDF” to load demo

2. Use arrow buttons to navigate pages

3. Try zoom controls to adjust view

4. Test Download and Print functions

5. Upload your own PDF to test fully

Need Help?

• Click the Help button (question mark icon) for quick reference

• All controls have tooltips – hover over buttons for descriptions

• The viewer shows file info and page count at the top

Pro Tips for Power Users

1. Dual Monitor Setup: Open viewer on one screen, reference material on another

2. Compare Documents: Open two browser tabs side-by-side with different PDFs

3. Presentation Mode: Use Full Screen (F11) + Fit Width for presentations

4. Research Mode: Vertical scroll + search (Ctrl+F) for quick scanning

Remember: This tool works 100% offline after loading. You can even save the HTML file and use it without internet connection once all resources are cached.

System Requirements: Modern web browser with JavaScript enabled. No plugins or extensions needed.

Last Updated: All features tested and confirmed working. Report any issues for immediate fix.