Advanced PDF Studio
Edit, combine, sign, organize and inspect PDFs from your phone or computer.
Your PDF is processed locally in this browser and is not submitted to TITAN's server. Save the edited PDF to keep your work. For confidential legal redactions or editing original embedded text, use a dedicated verified backend; covering text with a shape is not secure redaction.
Pages & organization
Page reorder can affect interactive form references. Export and verify complex forms after any structural edit.
Text, signatures & images
To add text, signature or image: select the tool then tap the intended location on the preview. Draw mode supports finger, mouse and stylus. These are visual annotations, not certified cryptographic signatures.
Watermarks
Fill PDF forms
For checkboxes enter true or false. Flattening makes fields non-editable; use Undo to reverse before closing.
Read text, OCR & inspection
Page text, OCR output and inspection notes appear here.
OCR reads one displayed page in English, requires downloading a recognition model, and is not a searchable-PDF conversion. A text layer is not a full PDF/UA accessibility audit.
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Open a PDF to preview and edit it here. Files remain on your device.
Mode: navigation
Keep an original copy. After editing, inspect every page of the downloaded file—especially forms, signatures and complex typography.