Open your document.
Choose a PDF, JPG, PNG, or WebP up to 25 MB. PDFs can have up to 40 pages. Sign in before opening your own file so your export allowance is ready. The sample is available to explore without a file upload.
Open. Cover.
Review. Share.
Keep the preparation simple.
Make the final decision yours.
Mark what should stay private.
Draw a rectangle over each sensitive area. Choose white, black, gray, or red. Use the arrow tool to move a rectangle and the corner handle to resize it. Undo and redo let you refine the result.
Review and choose your output.
Visit every page and check your marked areas. PDF and PNG exports replace covered pixels. A reviewed text export is available for text-based PDFs, with covered text replaced by [REDACTED].
Export, then use your AI tool.
Each click to export starts a counted attempt. Download your separate copy and check it before sharing. Use a page-image-compatible AI tool for flattened PDF/PNG, or paste the reviewed text into a text-based conversation.
Project brief.pdfILLUSTRATIVE SAMPLE
NORTHLINEPROJECT BRIEF / 01
WORKING DOCUMENTGood context.
Fewer private details.
Client contact
Name removed
Email removed
Project objective
Summarize the expansion plan and identify the questions we should ask next.
Account reference
Reference removed
Timeline
Next quarter
Private identifiers covered1 / 2
Three outputs. Clear tradeoffs.
| Output | What it contains | Best fit |
|---|---|---|
| Flattened PDF | All pages as images, with opaque redactions. No original text layer or source attachments. | AI tools that accept images or scanned PDFs; preserving page layout. |
| PNG image | The current page as a redacted image. | Sharing one page with an image-capable AI tool. |
| Reviewed text | Extracted text from a text-based PDF. Covered text items replaced; you review and may edit it. | Text-only AI conversations. Not OCR for image uploads or scanned pages. |