Welcome to the official support page for OnDevice PDF.
OnDevice PDF is a simple, private, and offline PDF toolkit that lets you edit and manage PDF documents directly on your phone or tablet. Your files stay on your device at all times—no cloud uploads, no accounts, and no sign-in required.
Merge multiple PDF files into a single document
Split PDFs by page range
Extract selected pages
Delete unwanted pages
Reorder pages
Duplicate pages
Rotate pages
Compress PDF file size
Add password protection
Remove password protection from PDFs you can unlock
Preview PDF files
Open password-protected PDFs
Share processed documents
View recent files
Search and sort recent documents
Works completely offline
No account required
No advertisements
No cloud storage
No. All PDF processing is performed locally on your device. Your documents are never uploaded to our servers.
No. You can use all features without creating an account or signing in.
Yes. OnDevice PDF works completely offline.
Please contact us using the support email below. We welcome your feedback and suggestions.
Email: info@sylvabit.com
We aim to respond to all support requests within 48 business hours.
Your privacy is our priority.
Your PDF files remain on your device.
No document content is uploaded to our servers.
No account or sign-in is required.
No cloud storage is used.