DartPDF Support
Find answers to common questions or reach out to our support team.
New to DartPDF?
Replay the quick tour for Edit, Sign, Merge, Convert, OCR and other core tools.
How can we help?
Contact Support
Have a question or issue that isn't covered in the FAQ? Our support team is here to help.
support@dartpdf.comDartPDF uses privacy-focused, browser-first processing. A secure upload may be used when needed to complete a paid download, with automatic deletion.
Frequently Asked Questions
Are my files uploaded to a server?
Most PDF processing happens locally in your browser using modern browser APIs. A processed file may be securely uploaded when needed to complete a paid download, and uploaded files are automatically deleted within 24 hours.
How long are files stored?
Recent session files are kept in browser memory and auto-delete after 30 minutes. If a secure upload is required to complete a paid download, that uploaded file is automatically deleted within 24 hours.
Why does my file disappear after refresh?
Your active working files are held in temporary browser memory during the session. Refreshing the page can clear that working state, which helps limit unnecessary retention.
Is DartPDF free to use?
You can process files before checkout. A final download can be unlocked with a $0.85 instant download, 5-day trial access, or a subscription. Monthly and annual plans include the Premium Multi-Tool Workflow and other advanced benefits.
What file formats does DartPDF support?
DartPDF supports PDF files for most tools, and JPG/PNG images for image conversion tools. File-size limits depend on the selected workflow or plan; supported paid plans allow larger files.
Why is my PDF not processing correctly?
Ensure your file is valid and within the file-size limit shown for the selected tool or plan. Some encrypted or password-protected PDFs may not be supported. Try a different browser if issues persist — Chrome or Edge are recommended for best compatibility.