When you actually need a scanned-look PDF
A surprising number of workflows require a "scanned copy" of a document even when the original is already a clean digital PDF:
- Corporate expense systems — many reimbursement portals require you to upload "the scanned receipt" even when the receipt is a PDF you were emailed. Uploading the digital PDF sometimes fails validation because it looks "too clean"; a scanned-look version sails through.
- Visa and immigration applications — the instructions often say "attach a scanned copy of your bank statement / degree certificate / passport photo page." Your bank statement was emailed to you as a digital PDF; scanning it just to submit it is wasteful. This tool produces the required scanned-look output directly.
- Legal filings where the local court's e-filing system was designed for scans and rejects digitally-generated PDFs.
- Notarisation and apostille workflows that require scans of the notarised document.
- Rental applications that ask for "a scan of your ID and last three payslips." Your payslips are emailed digital PDFs.
In all these cases, running the digital PDF through this tool produces exactly what the receiving system expects, without you having to print and re-scan the document.
What the tool actually does — no cheap filters
A lot of "make pdf look scanned" tools apply a single CSS filter over each page and call it done. The result looks fake because real scans have four separate visual characteristics that all have to be present. This tool applies each one as a real pixel-level operation:
- Luminance noise across the whole page — simulates the grain from a real scanner CCD sensor. Noise amplitude scales with intensity (Light 6, Medium 12, Heavy 20 on a 0-255 scale).
- Slight per-page rotation of ±0.4°, ±0.9° or ±1.6° depending on intensity. Alternates direction randomly per page — matches how a sheet-fed scanner drifts differently for each sheet. Purely digital PDFs are perfectly aligned; this asymmetry is one of the biggest tells.
- Warm off-white background tint — real paper in a scanner comes out slightly cream, not pure white, because of the scanner lamp's colour temperature. We shift bright pixels toward cream (RGB 246, 240, 230-ish).
- Radial edge shadow — real flatbed scans have slightly darker corners because the scanner lid presses the paper against the glass, creating a subtle shadow at the page edges. We apply a quadratic radial darkening from the centre.
Combined, the output is visually indistinguishable from a real scan to a human reviewer and passes most automated document validation heuristics.
Intensity — which to pick
- Light — high-end scanner like a Fujitsu ScanSnap or an office multi-function printer set to high-quality mode. Barely-noticeable rotation, minimal noise. Best for "proof of receipt" scans where the document should look freshly scanned.
- Medium (default) — typical office scanner or home multi-function printer. Realistic and readable. Best for most corporate/legal submissions.
- Heavy — old flatbed scanner from a decade ago. Visible grain, obvious per-page rotation, distinct edge shadow. Best when the receiving system explicitly expects a "scanned document" that looks its age (some legacy government portals).
Grayscale — photocopier look
Enable the Grayscale checkbox to strip colour before applying the scan-look effects. The result looks like a photocopy of the original, which some workflows specifically require (grayscale copies for archival submission, monochrome scans for text-only records).
What this tool does not do
Honest scope: it does not fake signatures, forge stamps, alter text, or add fake handwriting. It takes your existing PDF content unchanged and applies visual filters that make the output look like a scan of that content. If you need to add a real signature, use our PDF sign tool. If you need to fill in a form, do that in your PDF reader first, then process the filled PDF through this tool.
Ethics — a tool, not an instruction
Making a legitimate document you own look scanned to satisfy a bureaucratic requirement is normal and widely done. Making a fake document, forging a signature, or altering the content of a document you don't own is fraud in every jurisdiction. This tool has no way to distinguish those uses; assume ordinary responsible use.
Privacy — nothing uploaded
The tool loads your PDF with pdf.js in your browser, applies all filters as pure JavaScript on the pixel data, and reassembles the output with pdf-lib. Nothing about your document reaches our servers. This is especially important because the documents people run through this tool are often the same confidential ones they were trying to submit (contracts, medical records, bank statements, IDs).