PDF
PDF Page Stamper
Add text or page numbers to bounded plain-object PDF pages.
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How to use PDF Page Stamper
Add text or page numbers to bounded plain-object PDF pages. Use {page} and {pages} placeholders in a single-line stamp. The stamp is drawn in the unrotated MediaBox coordinate system with explicit margins and opacity.
- Provide the input and select the documented mode or options.
- Run the tool and review its result and any limits reported below.
- Copy the text result or download a separate output file.
Good to know
- This bounded PDF subset requires plain object/xref tables and direct stream lengths. Compressed object/xref streams, encryption, XFA, structural cycles and excessive nesting are rejected.
- 20MiB per PDF and200 pages; no PDF rendering, OCR or text extraction. Existing untrusted content/actions may be preserved; outputs are not sanitized or guaranteed anonymous.
- Signed PDFs and nondefault UserUnit pages are rejected for editing. Export a separate unsigned copy if appropriate; keep your originals.
- Stamp text up to200 characters with standard Helvetica/WinAnsi glyphs; no custom fonts or semantic watermark/removal claims.
- Rotated or cropped pages can change the visible placement. Review output in a trusted PDF reader before distribution.
- Processing happens in this browser tab. Inputs and results are not automatically saved or uploaded.
Common questions
What does PDF Page Stamper process?
Use {page} and {pages} placeholders in a single-line stamp. The stamp is drawn in the unrotated MediaBox coordinate system with explicit margins and opacity.
What happens to my original input?
The tool creates a separate result. Selected files and pasted data remain on this device; inspect the result before using it in another system.