PDF Overlay
Stamp a letterhead, watermark PDF or digital paper onto every page
What is PDF Overlay?
PDF Overlay is a free browser-based PDF tool from Farvixo that lets you stamp a letterhead, watermark PDF or digital paper onto every page. It runs entirely on your own device using WebAssembly, so the document is never uploaded to a server. There is no sign-up, no watermark on the output and no cap on how many files you process.
How to use PDF Overlay
Drag your PDFs into PDF Overlay or click to browse. The files stay on your device — nothing is uploaded to a server.
Reorder, select page ranges and pick the output settings you need. PDF Overlay shows a live preview so you can check the result before committing to it.
Download the new PDF straight away. No watermark, no page limit and no sign-up — run PDF Overlay as often as you need.
Frequently Asked Questions
What can I overlay?
Another PDF page — typically a letterhead, a company template, a "DRAFT" or "CONFIDENTIAL" stamp, or a digital paper background. The overlay is applied to every page, or to a range you specify.
Will the overlay hide my text?
Not if it has transparency, which a proper letterhead PDF will. A solid-background overlay will cover what is beneath it. Set the overlay to sit behind the content if your stamp is opaque.
Can I apply it to only some pages?
Yes — enter a page range. This matters for letterheads, which conventionally appear on the first page only while continuation pages stay plain.
Does Farvixo add its own mark?
No. The only thing stamped on your document is the overlay you chose. There is no branding, no watermark and no page limit.
What size should my overlay PDF be?
The same page size as the document you are stamping. A different size is scaled to fit, which can shift a letterhead off its intended position — matching sizes avoids the problem entirely.
What you can use PDF Overlay for
- Preparing a document for an email attachment or an upload form with a size limit
- Students and office workers who need one PDF change without buying a desktop editor
- Handling contracts, invoices or ID documents that should not be uploaded to a third-party server
- Cleaning up a scanned document before archiving or sharing it
PDF Overlay at a glance
- Tool
- PDF Overlay — PDF Tools
- Purpose
- Stamp a letterhead, watermark PDF or digital paper onto every page
- Input
- One or more files (PDF)
- Output
- PDF file (plus the chosen export format where the tool converts)
- Processing
- In your browser — files are never uploaded to a server
- Price
- Free, unlimited, no account required
- Limitations
- Bounded by your device's memory and CPU rather than a server quota; very large files may be slow on older hardware
Tips for better results
- Check the page count and orientation in the preview before you download — reordering afterwards means starting over.
- If a PDF refuses to open, it is usually password-protected; remove the password first, then re-run this tool.
- Very large PDFs are limited by your device memory, not by an upload cap. Splitting a 500-page file into parts is faster than processing it whole.
Common problems and how to fix them
The PDF will not load
The file is encrypted or was produced by a non-standard writer. Open it in a PDF reader, print it back to PDF, and try again.
Text comes out garbled or as boxes
The PDF has no embedded font or no text layer at all. A scanned page needs OCR first — use PDF OCR, then re-run this tool.
The browser tab becomes unresponsive
The document is larger than the available memory. Close other tabs, or split the PDF and process it in sections.
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