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PDF Unlocker Pro - Support Getting Started System Requirements iOS 16.0 or later iPhone or iPad Files app access Sufficient storage space for document processing First Time Setup Download and install PDF Unlocker Pro from the App Store Grant necessary permissions when prompted The app is ready to use immediately - no account setup required How to Use PDF Unlocker Pro Unlocking a Password-Protected PDF Open PDF Unlocker Pro Tap the "Unlock PDF" tab at the bottom Tap "Choose PDF from Files" to select your document Browse and select the password-protected PDF Enter the document password in the password field Tap "Unlock PDF" to process the document Once complete, choose "Save to Files" or "Share PDF" Adding Password Protection to a PDF Open PDF Unlocker Pro Tap the "Lock PDF" tab at the bottom Tap "Choose PDF from Files" to select your document Enter your desired password in the "New Password" field Confirm the password in the "Confirm Password" field Tap "Lock PDF" to process the document Save or share your password-protected PDF Frequently Asked Questions General Questions Q: Is my data safe? A: Yes. All PDF processing happens locally on your device. No files are uploaded to external servers, and we do not have access to your documents. Q: What file formats are supported? A: PDF Unlocker Pro supports standard PDF files with various encryption types commonly used for password protection. Q: Is there a file size limit? A: The app can handle large documents, but processing time may vary based on file size and device performance. Q: Do I need an internet connection? A: No. PDF processing works entirely offline. Internet is only needed for ads and initial app download. Unlocking PDFs Q: What if I don't know the password? A: You must know the correct password to unlock a PDF. The app cannot crack or guess passwords - this ensures document security. Q: Why does unlocking fail sometimes? A: Common reasons include: Incorrect password Corrupted PDF file Unsupported encryption type Insufficient device storage Q: Can I unlock PDFs with restrictions (printing, copying)? A: The app removes password protection. However, some PDFs may have additional restrictions that require separate handling. Locking PDFs Q: How secure is the password protection? A: The app uses standard PDF encryption methods. Choose strong passwords for better security. Q: Can I change the password on an already locked PDF? A: Yes. First unlock the PDF with the current password, then lock it again with a new password. Q: What makes a good password? A: Use passwords that are: At least 8 characters long Combine letters, numbers, and symbols Not easily guessable Unique to this document File Management Q: Where are processed files saved? A: You choose where to save files using the Files app integration. Temporary files are automatically cleaned up. Q: Can I process multiple files at once? A: Currently, the app processes one file at a time for optimal performance and security. Q: What happens to the original file? A: Original files remain unchanged. The app creates new processed copies. Troubleshooting App Issues Problem: App crashes when processing large files Close other apps to free up memory Restart your device Ensure sufficient storage space Try processing smaller files first Problem: Cannot select PDF files Check if the file is actually a PDF Ensure the file isn't corrupted Try copying the file to a different location Restart the Files app Problem: Password not accepted Verify the password is correct (case-sensitive) Check for extra spaces before/after password Ensure the PDF actually requires this password Try copying and pasting the password Performance Issues Problem: Slow processing Large files take longer to process Close unnecessary apps Ensure device has adequate free storage Allow the process to complete without interruption Problem: Export/sharing fails Check available storage space Ensure destination app is properly installed Try sharing to a different location Restart the device if problems persist Error Messages "Invalid PDF file" The selected file may be corrupted Ensure the file is a valid PDF document Try opening the file in another PDF app first "Incorrect password" Double-check the password spelling and case Ensure you're using the document password, not user password Contact the document creator if unsure "Processing failed" Check available device storage Close other apps and try again Restart the app Contact support if issue persists "Export failed" Ensure sufficient storage space Check file permissions Try saving to a different location Restart the Files app Privacy and Security Data Protection All processing occurs locally on your device No documents are uploaded to external servers Temporary files are automatically deleted No personal information is collected Best Practices Use strong, unique passwords for important documents Keep backup copies of important files Regularly update the app for security improvements Don't share passwords unnecessarily Contact Support Before Contacting Support Check this support page for solutions Try restarting the app Ensure you have the latest app version Note any specific error messages How to Contact Us Email: [Your Support Email] Response Time: 24-48 hours App Store Reviews: We monitor and respond to App Store reviews Information to Include When contacting support, please provide: Device model and iOS version App version number Description of the issue Steps you've already tried Any error messages received App Updates Automatic Updates Enable automatic app updates in your App Store settings to receive the latest features and security improvements. Update Notifications We'll notify users of significant updates through the App Store. Check the "What's New" section for details about each update. Legal Information Terms of Use Use PDF Unlocker Pro only with documents you own or are authorized to modify. Respect copyright and confidentiality agreements. Supported Languages Currently available in English. Additional language support may be added in future updates. Accessibility PDF Unlocker Pro is designed to be accessible to all users and supports standard iOS accessibility features.