DocSupra › Integrity Scanner
This is the real Integrity Scanner, running on this page. Nothing is uploaded.Open full screen →
Drop files or a folder here, or click to choose
JPEG · PNG · PDF · or a ZIP of them · up to 40 MB each · read on this device only
or drop it hereWhether it was edited, by what and when, what it exposes, and whether it is safe to open
For every file you get: the saved revisions with their date and software, the text removed and added, what was added after each signature, the private data the file exposes, and whether anything runs when it opens. Every check is listed with its result, and the file gets a level: Low, Medium or High. What it does not do: it reports facts about the file. It does not validate who signed, and it does not judge whether the content is true.
See whether a PDF or photo was edited, and exactly how, before you trust it.
The short answer. Drop a lease, a form, a statement or a photo, or a whole folder or ZIP. The scanner tells you whether the file was changed after it was first saved or signed, exactly which lines changed and when, and what private data it exposes, such as a GPS location, a serial number or a redaction that was marked but never applied. You get Low, Medium or High with every reason in plain words, the version before the edits when it is still inside the file, and a PDF report with the SHA-256 of each file. It runs on your device. Nothing is uploaded.
A file that arrives by email or chat has a history you cannot see: what took it, what re-saved it, and whether its dates agree with each other. The scanner reads that history out loud, in plain words, and leaves the judgement to you.
What it finds
Many PDF editors save a change on top of the original, so every earlier version stays inside the file. The scanner lists each later revision with its date and software, the text removed and added on each page, and the notes and form values added afterwards.
When the original is still inside the file, you can download it exactly as it was first saved, byte for byte, and keep it next to the copy you received.
Whether anything was added after each signature, and whether the signed bytes still match the digest inside it. The signer’s certificate and identity are not validated.
GPS locations, camera serial numbers, owner and author names, original file names and folder paths, previews that still show a cropped area, black boxes over text that is still there, hidden layers and attachments. For photos, it can download a copy without the location, device and author data.
JavaScript, actions that run when the file opens, executable attachments, forms that send what you type somewhere, links to raw IP addresses, encrypted PDFs, and files or code hidden inside an image (a ZIP or a PDF stuffed behind a JPEG, PHP code in a comment). These security checks are shown to everyone, before any payment.
Three layers over the image: error level (areas 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) and clones (a region copied over another part of the same photo, with the source and the copy outlined). Repeated textures and letters are ignored on purpose, so a form full of identical digits does not raise a false alarm.
Every result lists the checks that ran, 27 for a PDF and 17 for a photo, each marked clear, to review or alert, with three risk rings for integrity, privacy and security, a revision timeline and a page map that shows where on the page the lines were removed or added.
The copy you signed or sent against the copy you received: identical bytes, or the exact lines that differ, page by page.
Camera and phone firmware, photo editors, office suites and PDF engines each leave their name. Created and modified dates are compared, with time zones respected when the file carries them, and so is what a screenshot or a re-encode leaves in the file’s own bytes.
The SHA-256 of each file goes in the report, so the file you scanned is provably the file you kept. Drop a folder or a ZIP and every JPEG, PNG and PDF inside is scanned.
Above the drop zone and on every result: Edited? (yes, likely or no sign, with the reason), Source & time (the camera, phone or program that made the file, when it was taken or created and when it was last saved, to the minute), Exposes (location, names, serials, hidden text and personal identifiers) and Safe to open? (scripts, executables and hidden payloads). The safety answer is shown to everyone, paid or not.
For a PDF with text, a Compliance tab lists every personal identifier in the text (SSN, date of birth, MRN, account, card, routing, NPI, IP, VIN and more), masked, with its page and line and its HIPAA identifier category. Pick the form type yourself (HIPAA authorization under 45 CFR 164.508, Notice of Privacy Practices acknowledgement, GLBA privacy notice, consent to electronic records) and the tab marks each required element as present with the line that proves it, or missing. A redacted copy (image-only PDF with the identifier lines blacked out and no text layer) downloads with a check or the subscription. Open a sample HIPAA authorization with three elements missing.
Drop a folder or a ZIP with hundreds of files: each one shows its three answers on a compact card, a bar above the list counts them (edited, to review, exposes data, not safe to open, clean) and filters with one click, and the order can put the highest risk first. Measured with 200 files: the list stays responsive while it fills, and every card opens to the full report.
A browser update can break software that nobody touched. Before it reads your first file, the engine examines itself in your browser with three small files whose answers are known (an edited contract, a HIPAA authorization with three elements missing, a photo with camera data). If it does not get all three right, it shows no result and says so. The same file always gives the same verdict: twice in a row, in Chrome and in Firefox.
Exactly what the report says for an edited lease
A sample lease, saved twice. The second save changed six lines and laid a note over the rent. Below is the scanner’s own wording for that file, captured from a real run and not edited. Open the same sample in the Integrity Scanner to see the card, the page map and the version before the edits.
Integrity: High. Changed after it was first saved: the text on page 1 was changed on July 16, 2026 in Adobe Acrobat Pro DC 23.1.20093.
Why
- Page 1, “Term”: “12 … June … 2027.” → “6 … December … 2026.” (date changed)
- Page 1, “Monthly rent”: “$1,450.00,” → “$1,650.00,” (amount changed)
- Page 1, “Security deposit”: “$1,450.00,” → “$2,900.00,” (amount changed)
- Page 1, “Late fee”: “$50.00 … 5th.” → “$150.00 … 3rd.” (amount changed)
- Page 1, “Pets”: “One cat allowed. … additional pet deposit.” → “pets allowed.” (wording changed)
- Page 1, “Notice”: “60” → “30” (number changed)
- Editing software recorded: Adobe Acrobat.
- Created June 1, 2026, 13:00 UTC, modified July 16, 2026, 14:30 UTC.
- 2 saved revisions: the file was saved 1 more time on top of the original.
What changed, word for word
Revision 2 (2026-07-16) — Adobe Acrobat Pro DC 23.1.20093
page 1, top of the page — Term (date changed)
was: 3. Term. 12 months, from June 15, 2026 to June 14, 2027.
now: 3. Term. 6 months, from June 15, 2026 to December 14, 2026.
be careful: A date changed. Check the term, deadline or signing date against the original.
page 1, top of the page — Monthly rent (amount changed)
was: 4. Monthly rent: $1,450.00, due on the 1st of each month.
now: 4. Monthly rent: $1,650.00, due on the 1st of each month.
be careful: An amount changed. Check it against the copy you signed or were sent before you rely on it.
page 1, top of the page — Security deposit (amount changed)
was: 5. Security deposit: $1,450.00, returned within 30 days of move-out.
now: 5. Security deposit: $2,900.00, returned within 30 days of move-out.
be careful: An amount changed. Check it against the copy you signed or were sent before you rely on it.
page 1, top of the page — Late fee (amount changed)
was: 6. Late fee: $50.00 if rent is received after the 5th.
now: 6. Late fee: $150.00 if rent is received after the 3rd.
be careful: An amount changed. Check it against the copy you signed or were sent before you rely on it.
page 1, middle of the page — Pets (wording changed)
was: 8. Pets. One cat allowed. No additional pet deposit.
now: 8. Pets. No pets allowed.
be careful: The wording of this line changed. Read both versions side by side before you rely on it. This line sets money terms.
page 1, middle of the page — Notice (number changed)
was: 9. Notice. Either party gives 60 days written notice to end the lease.
now: 9. Notice. Either party gives 30 days written notice to end the lease.
be careful: A number changed. Check the quantity, count or period against the original.
note (FreeText) on page 1: “Rent: $1,650.00 per month” — M. Landlord
be careful: This revision was saved with Adobe Acrobat; the original came from Microsoft Print to PDF.
be careful: It was saved 45 days after the file was first saved.
be careful: A text box was laid over page 1 saying “Rent: $1,650.00 per month” (by M. Landlord): what prints there can differ from the page text.
Be careful
- This revision was saved with Adobe Acrobat; the original came from Microsoft Print to PDF.
- It was saved 45 days after the file was first saved.
- A text box was laid over page 1 saying “Rent: $1,650.00 per month” (by M. Landlord): what prints there can differ from the page text.
- The version before the edits is still inside this file: anyone who has the file can extract it.
- There is no digital signature, so nothing in the file certifies which version was agreed.
- A date changed. Check the term, deadline or signing date against the original.
- An amount changed. Check it against the copy you signed or were sent before you rely on it.
- The wording of this line changed. Read both versions side by side before you rely on it.
- This line sets money terms.
- A number changed. Check the quantity, count or period against the original.
Privacy: Exposes: Text that was deleted is still inside the file; Author name recorded: Maria Landlord; Original file name recorded: Microsoft Word - lease_unit4B_final.docx. Security: No active content or suspicious links found.
How to read the result
Every file gets three answers. Integrity: Low means nothing was recorded after the file was first saved, or after it was signed. Medium means something was added or re-saved later without changing the page text: notes, form values, a re-save by an editor that erased the earlier versions, or a photo cropped after it was taken. High means the page text changed after the file was first saved or signed, the signed bytes no longer match the signature, or the file was made or re-saved with design or image software. Privacy lists the private data the file carries, and Security lists active content and suspicious links. Every level comes with its reasons in plain words and the technical fact behind each one.
The scanner does not decide whether a document is genuine and it does not accuse anyone. It states what the file says about itself. Whether that history is acceptable is a judgement for the person who has to trust the file, with the facts in front of them.
Who it is for
- Tenants and landlords checking a lease before they sign or pay
- Anyone about to send a photo of an ID or a form, who wants to know what it gives away
- Recruiters and registrars receiving certificates and transcripts
- Landlords and lenders receiving statements and pay stubs
- Buyers and accountants receiving invoices and receipts
- Editors and marketers receiving photographs
- Anyone asked to trust a file they did not create
How to use it
Open the Integrity Scanner
Go to docsupra.com/#scanner, or pick Integrity Scanner from the “Go to” menu in any studio. On a computer you can install it as an app from the browser menu.
Drop the files
One file, a whole folder or a ZIP of JPEG, PNG and PDF, up to 40 MB each. Everything is read on your device; nothing is uploaded, and once it has loaded it reads files without a connection.
Read what the file says
Each file gets three risk rings, Low, Medium or High for integrity, privacy and security, with the reasons in plain words: when it was changed and with which software, the text removed and added on each page and where on the page, notes and form values added later, whether a signature still covers it, what private data or active content it carries, and for photos the evidence layers that show pasted, smoothed or cloned areas.
Export the report
Save the PDF integrity report: per file, the SHA-256, the level and the technical facts behind it, dated. Keep it with the file, or send it to whoever asked you to trust it.
What it is not
It is not authenticity verification, and it is not legal advice. It does not repair documents; that is the Compliance Studio. The only files it writes are a copy of a photo without its private metadata and the version before the edits that was already inside a PDF. It reads what a JPEG, PNG or PDF carries with it and reports it, on your device, without sending a byte anywhere.
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.
Open the Integrity Scanner →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. A signal is a technical fact about the pixels, not an accusation.
Do I see the security checks without paying?
Yes. Whether a file carries JavaScript, actions that run on opening, executable attachments, a hidden file or code inside an image, or an encrypted structure is shown to everyone, with the detail, because a warning about a dangerous file should not sit behind a payment. What changed, the privacy detail, the downloads and the report are part of a check or the subscription.
Can it show what was changed in a lease or a form?
Often, yes. Many PDF editors save a change on top of the original, so every earlier version is still inside the file. The scanner shows each later revision with its date and software and the text removed and added on each page, and you can download the version before the edits. If the file was rewritten from scratch, that history is gone: the scanner reports the re-save, and you can compare the file line by line with your own copy.
What does “what it exposes” mean?
Data inside the file that the page does not show: the GPS location of a photo, the camera’s serial number, the author’s name, the original file name, a preview that still shows a cropped area, or a black box over text that is still there underneath. The scanner lists it, and for photos it can download a copy without the location, device and author data.
Does it check signatures?
It checks whether anything was added after each signature and whether the signed bytes still match the digest inside the signature. It does not validate the signer’s certificate or identity; the service that issued the signature does that.
Does the file get uploaded?
No. The scanner reads the file on your device, in the browser. Once it has loaded you can disconnect from the internet and it still reads your files.
Which files does it read?
JPEG, PNG and PDF, one at a time, as a folder or as a ZIP, up to 40 MB each.
Is a High level proof that a document was altered?
No. It means several technical signals together say the file was changed after it was produced. The report lists each signal with the fact behind it; what that means for the document is your judgement, and the scanner never claims otherwise.
Does it include document downloads?
The $14.99 monthly subscription covers up to 1,000 files a month and their reports; repairing and exporting documents is the Compliance Studio. The $9.99 pack (3 integrity checks and 3 document downloads) and the $19.99 30-day pass (up to 50 checks and unlimited downloads) include both.
Is it included in the team plans?
Yes. Professional Team and Corporate Studio include the scanner for every person, and the Enterprise Compliance Studio shows the same integrity signal on each file in a batch.
Scan the file you were just sent
3 checks for $9.99, or up to 1,000 files a month for $14.99, cancelled in one click. Included with Professional Team and Corporate Studio.
Open the Integrity ScannerWhat you can do in the Integrity Scanner
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