{"opensite":"0.1","url":"https://markedfile.com/","canonical":"https://markedfile.com/","site":{"name":"Markedfile","web":"https://markedfile.com"},"kind":"product","title":"Markedfile","description":"Markedfile is forensic watermarking and leak tracing from Graysphere LLC. You create a separate invisible mark for each recipient of an image, a PDF, or a video. Pro includes up to 5 active videos, each up to 10 minutes and 100 MB. Business includes video up to 30 minutes and 300 MB, with no cap on how many are active. Enterprise video length and video file size are Custom. The marked video…","image":{"url":"https://markedfile.com/og.png"},"language":"en","tags":["security"],"feeds":[],"published_at":null,"modified_at":null,"fetched_at":"2026-11-03T22:50:55.775Z","status":"live","source":"read","cards":{"og":{"title":"Markedfile · forensic watermarking and leak tracing","description":"Invisible forensic watermarking for leak detection and leak tracing. Markedfile marks files you share privately. File contents are not stored.","url":"https://markedfile.com","site_name":"Markedfile","locale":"en_US","image":"https://markedfile.com/og.png","image:type":"image/png","image:width":"1200","image:height":"630","image:alt":"Markedfile, forensic watermarking and leak tracing by Graysphere LLC","locale:alternate":"es_ES","type":"website"},"twitter":{"card":"summary_large_image","title":"Markedfile · forensic watermarking and leak tracing","description":"Invisible forensic watermarking for leak detection and leak tracing. Markedfile marks files you share privately. 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File contents are not stored.","url":"https://markedfile.com","inLanguage":"en","provider":{"@id":"https://graysphere.com#organization"},"offers":[{"@type":"Offer","name":"Free","price":"0.00","priceCurrency":"USD","description":"Personal Workspace only. 5 active files. detectable for 6 months. Up to 5 MB per file. PDFs up to 10 pages. No video. $0 per month."},{"@type":"Offer","name":"Starter","price":"9.99","priceCurrency":"USD","description":"Personal Workspace only. 50 active files. detectable until you delete it. Up to 10 MB per file. PDFs up to 50 pages. No video. $9.99 per month."},{"@type":"Offer","name":"Pro","price":"19.99","priceCurrency":"USD","description":"Personal Workspace only. no active-file cap. detectable until you delete it. Up to 20 MB per file. PDFs up to 100 pages. Up to 5 active videos, each up to 10 minutes and 100 MB, downloaded as MP4. $19.99 per month."},{"@type":"Offer","name":"Business","price":"49.99","priceCurrency":"USD","description":"One shared workspace. no active-file cap. detectable until you delete it. Up to 100 MB per file. PDFs up to 500 pages. Video up to 30 minutes and 300 MB, downloaded as MP4. $49.99 per month."}],"image":"https://markedfile.com/og.png"}]},{"@type":"Organization","@id":"https://graysphere.com#organization","name":"Graysphere LLC","url":"https://graysphere.com","email":"contact@markedfile.com","address":{"@type":"PostalAddress","streetAddress":"30 N Gould St Ste N","addressLocality":"Sheridan","addressRegion":"WY","postalCode":"82801","addressCountry":"US"},"brand":{"@type":"Brand","name":"Markedfile"}},{"@type":"SoftwareApplication","@id":"https://markedfile.com#software","name":"Markedfile","applicationCategory":"SecurityApplication","operatingSystem":"Web","description":"Invisible forensic watermarking for leak detection and leak tracing. Markedfile marks files you share privately. File contents are not stored.","url":"https://markedfile.com","inLanguage":"en","provider":{"@id":"https://graysphere.com#organization"},"offers":[{"@type":"Offer","name":"Free","price":"0.00","priceCurrency":"USD","description":"Personal Workspace only. 5 active files. detectable for 6 months. Up to 5 MB per file. PDFs up to 10 pages. No video. $0 per month."},{"@type":"Offer","name":"Starter","price":"9.99","priceCurrency":"USD","description":"Personal Workspace only. 50 active files. detectable until you delete it. Up to 10 MB per file. PDFs up to 50 pages. No video. $9.99 per month."},{"@type":"Offer","name":"Pro","price":"19.99","priceCurrency":"USD","description":"Personal Workspace only. no active-file cap. detectable until you delete it. Up to 20 MB per file. PDFs up to 100 pages. 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If that copy later turns up, detection looks for the mark that belongs to the identifier."}},{"@type":"Question","name":"What does Markedfile store?","acceptedAnswer":{"@type":"Answer","text":"File contents are processed in memory and are not stored. Your account keeps the metadata needed to detect a mark later: the identifier you assigned, the file name and type, the status, and timestamps. A file stays detectable while it is active. Deleting the record ends detection and frees the slot. Letting a Free file expire also removes the token. Passwords are stored as hashes."}},{"@type":"Question","name":"What is included in Free, and when does a file expire?","acceptedAnswer":{"@type":"Answer","text":"Free is the Personal Workspace plan. It includes 5 active files. Each stays detectable for 6 calendar months from the time you mark it, clamped to the end of shorter months. Deleting the record ends detection and frees a slot immediately. This is a cap on active files, not a monthly upload quota."}},{"@type":"Question","name":"How do personal plans differ from a business workspace?","acceptedAnswer":{"@type":"Answer","text":"Starter and Pro are for one person. A shared workspace uses Business or Enterprise. Invitations and new marks there need one of those plans, and each workspace is billed on its own."}},{"@type":"Question","name":"Will every screenshot or edited copy be identified?","acceptedAnswer":{"@type":"Answer","text":"No. Recovery is best effort, and the confidence score is a heuristic. Confidence is about 99% for the exact file or when the HMAC metadata mark agrees with another mark, 95% from that metadata mark alone, and up to 85% for a strong visual match such as a re-saved JPEG or a screenshot. A visual-only score stays under 90%. Images smaller than 128×128 pixels are not accepted. Measured PNG floors, with several active files, are best effort: a detailed photo from 224 pixels on a side, a flat diagram from 192 pixels except one alignment that still misses, and flat gray or near-black from 120 pixels. A blotchy texture needs about 256 pixels. A 208-pixel photo and that 192-pixel alignment still miss. A PDF screenshot is best effort and is not guaranteed: the top half of a text page with margins, about 200 points square on a ticket, about 320 points square on a slide, or about 160 points square on a photograph. Images can often survive a crop, a resize, or recompression, but a heavily edited copy may not resolve. Marks in text files and ZIP-based packages, including Office files, are fragile. Markedfile does not promise that every leaked copy can be traced."}},{"@type":"Question","name":"Which files can be marked?","acceptedAnswer":{"@type":"Answer","text":"PNG, JPEG, and WebP images; PDFs, including detection from the rendered page rather than metadata alone; text files and ZIP-based packages, including Office files; and other binary files, which come back inside a marked ZIP. An active Business or Enterprise workspace can also mark and detect MP4, MOV, WebM, and MKV video. The download is MP4. A screenshot of one frame is not detected as an image. Free and Starter do not include video. Pro includes up to 5 active videos, each up to 10 minutes and 100 MB. Every supported file also gets an HMAC metadata mark for that workspace. The workspace plan sets the limit: Free allows 5 MB per file and PDFs up to 10 pages, Starter 10 MB and 50 pages, Pro 20 MB and 100 pages, and Business 100 MB and 500 pages, plus video up to 30 minutes and 300 MB. Enterprise file size, PDF pages, video length, and video file size are Custom."}},{"@type":"Question","name":"Is there a free trial?","acceptedAnswer":{"@type":"Answer","text":"Starter, Pro, and Business include a 14-day free trial, card required, cancel anytime. The first charge comes after the trial."}}]}]}