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DocSupra · Integrity Scanner
Was this photo edited?
Error level, sensor grain and cloned areas, plus what the file says about its own software and dates.
How to check whether a photo of a document was edited.
The short answer. Drop the JPEG or PNG into the Integrity Scanner. It reads what the file carries (the camera or phone, any editing software, the created and modified dates) and runs three pixel analyses on your device: error level, sensor grain and copy-move. Areas that were pasted, smoothed over or cloned are outlined on the image.
A photo of an ID, a pay stub or a statement can be changed without leaving anything you would notice by eye. What it leaves is in the pixels and in the file: a patch saved at a different compression level, grain that stops matching the rest of the picture, a region copied over another, the name of an editor in the metadata. The scanner shows those facts and leaves the judgement to you.
What it analyses
Areas saved at a different compression level than the rest of the image stand out. A pasted number or a retouched field usually does.
A camera leaves its own fine noise over the whole frame. A pasted patch or a smoothed-over area breaks it. The grain is compared between areas of similar brightness, so a dark desk beside white paper is not mistaken for an edit; when a photo has too little grain to judge, the scanner gives no verdict on grain instead of a guess.
A region copied over another part of the same photo, with the source and the copy outlined. Repeated textures, letters and digits are ignored on purpose, so a form full of identical digits does not raise a false alarm.
Camera and phone firmware, photo editors and office suites each leave their name. Created and modified dates are compared, with time zones respected when the file carries them.
GPS location, camera serial number, owner and author names. You can download a copy of the photo without the location, device and author data.
Low: nothing recorded after the photo was taken. Medium: one thing worth a look, such as a crop, a re-save by an editor or a single pixel signal. High: the file was edited with design software, a region was cloned, or an area differs from the rest in both compression and grain.
How to check a photo
Open the Integrity Scanner
Go to docsupra.com/?abre=scanner.
Drop the photo
JPEG or PNG, up to 40 MB, or a folder or ZIP with hundreds. The file is read on your device.
Read the answers
Edited?, Source and time, and Safe to open? on the card; then open the evidence view to see the three layers over the image.
Keep the report
Export the PDF report with the SHA-256 of the file, the level and the facts behind it.
What it cannot tell you
A signal is a technical fact about the pixels, not an accusation. A screenshot, or a photo re-saved by a messaging app, loses most of its history: the scanner reports that the file was re-encoded and what remains. A careful edit re-saved at uniform quality can leave no signal at all, so “no sign” means that nothing was found, not that the photo is genuine. The scanner does not verify authenticity and it is not expert testimony.
What the Integrity Scanner costs
From one lease to a whole department: pay once for a few checks, or subscribe.
Document downloads are not part of this subscription: repairing and exporting documents is the Compliance Studio. Prices are in USD and exclude any tax that applies in your country; Stripe calculates it and shows it before you pay.
Check a photo now →Questions
Can it tell if a photo was retouched?
Often. The evidence view runs three pixel analyses on the device: error level (a region saved at a different compression level than the rest), sensor grain (a pasted patch or a smoothed-over area breaks the camera’s own noise pattern) and copy-move (a region duplicated inside the same photo, with the source and the copy outlined). They are deliberately conservative: repeated textures and repeated letters or digits are ignored, and a clean photo shows no signal.
Does a photo sent by a messaging app still show the evidence?
Messaging apps usually re-compress photos and remove their metadata. The pixel analyses still run on what arrives, but the camera data and the original compression are gone; the scanner reports that the file was re-encoded.
Which files can it read?
JPEG and PNG photos and PDF documents, up to 40 MB each, one at a time or as a folder or ZIP.
Is the photo uploaded?
No. The file is read on your own device, inside the browser. There is no upload endpoint, no server copy and no retention period; you can disconnect from the internet and it keeps working.
What does it cost?
Where the file came from and whether it is safe to open are shown to everyone. Whether it was edited, how, and what it exposes comes with a check: 3 checks with the $9.99 pack, 50 with the $19.99 pass, or up to 1,000 files a month with the $14.99 subscription. It is included with Professional Team and Corporate Studio.
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