PDF Forensic Authentication Analysis - 21/06/2026 21:13 EDT

₹1500-12500 INR

Closed

Posted 7 days ago

₹1500-12500 INR

Paid on delivery

I have a set of six to seven small PDFs that need a proper forensic work-up. The first thing I need to confirm is whether each file started life as a scan or carries a native digital signature. Beyond that, my main interest is in uncovering the human footprint inside the documents—who may have edited, signed, or otherwise touched them, along with the precise timestamps for creation, modification, and signing events. You can use any combination of metadata extraction, XMP parsing, digital-signature validation, hash comparison, or hex-level inspection—whatever yields the clearest chain of custody. If you spot clues that point to the specific software or hardware used, include them; I’m not entirely sure I need that layer, but I’d like to see what you can discover. Deliverables • A concise executive summary highlighting the key findings for each file • A full technical report that details methods, tools, metadata fields, and signature validation steps, plus any artefacts or screenshots that support your conclusions I’ll supply the PDFs once we start; you return the two-tier report set and be prepared to walk me through the evidence if anything needs clarification.

Project ID: 40530211

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Active 5 days ago

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6 freelancers are bidding on average ₹7,250 INR for this job

@koolvishruth

As a seasoned AI, data science, and automation engineer with over seven years of experience, I've developed a special knack for uncovering meaningful patterns in extensive data sets just like the one you've described. My expertise in data analysis and processing would be particularly valuable for your PDF forensic project. I'm well-versed in properly extracting metadata, utilizing XMP parsing, validating digital signatures, hashing comparisons, and even performing hex-level inspections to provide you with the clearest chain of custody for each file.

₹7,000 INR in 2 days

5.0

(40 reviews)

5.8

@Bwatter

Hello, How are you today? After carefully reviewing your requirements, I'm confident in my ability to deliver the best result with the highest accuracy in the shortest time possible as I have completed similar projects as an expert where I delivered 100% quality. Chat me up to get this project started immediately. Thank you.

₹7,000 INR in 1 day

5.0

(41 reviews)

5.4

@kajal1992

Hello, I can perform a comprehensive forensic analysis of your PDF files to establish their origin, authenticity, and document history. My investigation will include metadata extraction, XMP analysis, digital signature validation, timestamp verification, hash analysis, and low-level file structure examination where required. I will determine whether each PDF originated from a scanned document or was digitally created, identify available evidence of editing or signing activity, extract creation/modification timestamps, and document any artifacts related to authorship, software, hardware, or workflow history. Deliverables will include: • Executive Summary for each PDF with key findings • Detailed Technical Forensic Report covering methodology, tools used, metadata fields, signature validation results, and supporting evidence/screenshots • Chain-of-custody observations and integrity verification I have experience in Digital Forensics and document artifact analysis and can explain all findings in clear, non-technical language if required. Best regards, Kajal Majhi Digital Forensics & Cybersecurity Consultant

₹10,000 INR in 7 days

5.0

(16 reviews)

5.0

@OxMoonlightsun

Hi, I can review the 6-7 PDFs and prepare a clear metadata/signature evidence report. I would check each file for scan indicators, native PDF structure, XMP and document metadata, creation/modification timestamps, digital signature status, hash consistency, and clues about the software used. I will keep the work to analysis and reporting, with screenshots or extracted fields included where they support the finding. The handoff would include a short executive summary per file plus a technical report showing the methods, tools, key metadata fields, signature checks, and any limitations. If anything is inconclusive, I will label it that way rather than overstating the evidence. My bid is INR 7,500 with 2-day delivery after receiving the PDFs.

₹7,500 INR in 2 days

0.0

(0 reviews)

0.0

@murtesa

I can perform a detailed forensic analysis of your PDF documents to establish their origin, modification history, and potential chain of custody. Using a combination of metadata extraction, XMP analysis, digital signature validation, document structure inspection, hash verification, and low-level PDF examination, I will determine whether each file originated from a scanned document, was digitally generated, or contains valid electronic signatures. The investigation will focus on identifying creation, modification, and signing timestamps, authorship indicators, editing history, software fingerprints, and any available evidence showing who may have created, modified, signed, or processed the documents. Where possible, I will also identify the software, devices, scanners, or PDF generators involved and highlight any inconsistencies or anomalies discovered during the analysis. Deliverables will include an executive summary for each PDF outlining key findings, along with a comprehensive technical report documenting methodologies, tools used, metadata fields, signature validation results, forensic artefacts, screenshots, and supporting evidence. I will also be available to explain the findings and answer follow-up questions to ensure the results are clear and actionable.

₹7,000 INR in 7 days