Free online PDF tool
Add dynamic stamps to PDF pages
Stamp a PDF with custom text, the current date and time, page numbers or a running sequence. PdfWiseAI lets you place the stamp at any corner or center of each page, with adjustable opacity and font size.
Use Stamp PDFHow it helps
A straightforward way to work with your document
Unlike a watermark, a stamp is meant to be legible and informative — think 'RECEIVED', 'APPROVED', 'CONFIDENTIAL' with a date. You can include a prefix/suffix, format the date (YYYY-MM-DD, DD/MM/YYYY, MM/DD/YYYY), and number pages sequentially starting from any number.
The stamping runs in your browser. The PDF is not uploaded and no sign-up is required.
Three simple steps
How to use Stamp PDF
- 1
Select a PDF to stamp.
- 2
Enter the stamp text and choose options (date, page number, position, opacity).
- 3
Download the stamped PDF.
Professional use cases
When to use this tool
This workflow is useful for legal teams assembling exhibits, finance staff preparing statements or tax records, healthcare offices organizing administrative documents, and anyone handling files that should not be copied to an unnecessary conversion server.
PdfWiseAI creates a separate result and leaves the source unchanged. Review page order, image quality, visible content and the output filename before sharing the generated file.
Privacy verification checklist
Check the workflow before using sensitive documents
- Use a harmless sample file first and confirm the expected output.
- Prefer local transformations when no AI analysis is needed.
- Follow your organization’s security, legal and records policies.
- Keep originals until the generated file has been reviewed.
Local processing reduces document transfer, but it is not a certification of compliance with HIPAA, attorney-client duties or another regulatory framework.
Frequently asked questions
Stamp PDF FAQ
How is a stamp different from a watermark?
A stamp is typically smaller, opaque and positioned at a corner for reference. A watermark is diagonal, semi-transparent and covers the page.
Can I add page numbers with this?
Yes. Enable 'Include page number' and set a starting number.
Can I format the date?
Yes. Choose YYYY-MM-DD, DD/MM/YYYY or MM/DD/YYYY.
Is the PDF uploaded?
No. The stamp is applied locally in your browser.
What is the difference between a stamp and a watermark?
A stamp is a small, opaque marker placed at a corner or center of a page. A watermark is a large, semi-transparent overlay that covers the page. Use a stamp for status labels and a watermark for ownership marks.
Can I add a date and a page number to the same stamp?
Yes. Combine text, date, time, and page number in a single stamp. Each element can be toggled independently in the stamp options.