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Orilami

Course & E-Book Watermarker: before and after

An illustration with sample files; your own files show their own results.

BeforeOne master PDF, sent to everyone

  • Ana's copy, unmarked

  • Ben's copy, unmarked

  • Chen's copy, unmarked

AfterA personalised copy for each buyer

  • Name in the footer

  • Name tiled across the page

  • Stamped, plus a hidden mark

Course & E-Book Watermarker: Batch Watermark PDFs with Each Buyer’s Name

Stamp a personalised watermark per buyer across a course PDF or e-book and generate up to 50 uniquely named copies at once: dynamic text, an anti-screenshot grid, an invisible forensic signature or a brand logo. Your PDF and buyer list are processed in your browser; nothing is uploaded.

Four protection engines

  • Dynamic text — inject {{email}}, {{name}}, {{order_id}} and more from a CSV.
  • Diagonal grid — a repeating 45° matrix that survives cropping and screenshots.
  • Ghost / stealth — a zero-width forensic signature hidden in the document metadata for leak tracing.
  • Brand stamp — a transparent PNG or SVG logo placed anywhere on the page.

Frequently asked questions

How does a per-buyer watermark stop leaks?
A watermark does not block copying; it makes a leak traceable. Each copy carries the buyer's identity, so a file found circulating leads back to the account it was sold to. Buyers knowing that changes behaviour more than a lock does.
What watermark styles are available?
Four: visible text across the page, a dense anti-screenshot grid, an invisible forensic mark and a stamp. They can be combined, so one copy carries a visible deterrent and a hidden identifier.
Can a buyer just remove the watermark?
A determined one can attack the visible layer, which is why the invisible mark exists too. It is an overlay on the page, not encryption: it raises the effort and risk of sharing rather than making it impossible.
How do I watermark a whole customer list at once?
Upload a CSV of buyers with the master PDF. Each row produces its own copy, and the batch is packaged as a ZIP, generated across several browser workers in parallel.
Are my buyers' names uploaded anywhere?
No. The CSV is parsed and the PDFs are generated in your browser. Your customer list never leaves your machine.
What is the ghost watermark, and how do I read it back?
An invisible zero-width signature in the document metadata. Use Decode to read it back from a surviving copy and identify the source of a leak.
More questions about Orilami

Course & E-Book Watermarker at a glance

Key facts about Course & E-Book Watermarker: where it runs, what it costs, what it accepts and produces, and its limits.
Where it runsEntirely in your browser. Files are never uploaded.
Cost250 tokens per batch (about $2.50 at the base rate)
AcceptsA master PDF, plus an optional CSV of buyer names and emails
ProducesOne personalised PDF per buyer, delivered as a ZIP built in your browser.
BatchOne at a time.
Account neededOnly to spend tokens. Browsing and previewing are free.
What it does not doWatermarks are an overlay on the page. They deter and attribute sharing; they do not encrypt the file or stop it being opened.