Inspect PDF Metadata & Properties 100% Free

A standard PDF document contains two primary metadata reservoirs: the classic /Info dictionary and the Extensible Metadata Platform (XMP) XML metadata stream. Common embedded properties include the document title, author name or computer username, creator application (such as Microsoft Word, Google Docs, LibreOffice, or InDesign), producer rendering engine (such as Skia/PDF, Quartz, Acrobat Distiller, or pdfTeX), creation date, modification date with timezone offsets, page dimensions (MediaBox, CropBox, BleedBox), encryption algorithms, and embedded font licensing parameters.

Yes, significantly. When documents are exported from office word processors or graphic design tools, they frequently embed the author's local operating system login username, corporate server file paths (such as C:\Users\JohnDoe\Documents\Confidential\ProjectAlpha.docx), internal intranet printer names, software version numbers, and unique document UUIDs. Reviewing and analyzing metadata prior to public distribution prevents unintended operational security and privacy leaks.

No. PDFs.lol operates 100% client-side. The file is read directly into your browser's local sandbox memory (RAM) using the HTML5 FileReader API and parsed via compiled WebAssembly. No document data, metadata streams, or binary bytes are ever transmitted over the network or saved to remote cloud servers.

Drop your PDF into the metadata inspector above. Our engine instantly parses the /CreationDate and /ModDate timestamps located in the document trailer and XMP stream. In standard PDF formatting, dates follow ASN.1 format (for example, D:20261004143022-04'00'), detailing the exact year, month, day, hour, minute, second, and UTC timezone offset when the file was generated and last modified.

The /Info dictionary is the legacy metadata structure defined in the original PDF specifications, storing basic key-value pairs (Title, Author, Subject, Keywords, Creator, Producer, CreationDate, ModDate). The XMP (Extensible Metadata Platform) stream is an ISO-standardized XML packet introduced by Adobe to provide rich, schema-based metadata compliant with W3C standards (such as Dublin Core, Photoshop, and Rights Management). Modern PDF readers support both, and forensic examiners frequently compare them to detect tampering.

Yes. Digital forensics examiners analyze the delta between the /CreationDate and /ModDate, inspect incremental update sections in the PDF cross-reference table (/xref), and compare the /Info dictionary against the embedded XMP instance IDs (xmpMM:InstanceID). If the modification timestamp post-dates signature dates or if multiple contrasting producer software stamps exist, it indicates retroactive editing.

PDF pages define up to five nested rectangular boundary boxes: 1) MediaBox defines the physical paper boundary; 2) CropBox defines the visible viewport in PDF viewers; 3) BleedBox defines the printing boundary for trimming bleeds; 4) TrimBox defines the intended final finished page dimensions; and 5) ArtBox defines the meaningful content area. Print shops and publishers inspect these boxes during pre-flight to prevent cutoffs.

PDFs can be encrypted with an open password (user password) or a permissions password (owner password). For user-password encrypted files, entering the password allows the browser to decrypt and display the metadata. Many PDFs encrypted only with an owner permissions password still maintain unencrypted /Metadata streams, allowing our inspector to read structural properties and permission bitmasks without requiring decryption.

Press F12 to launch your browser's Developer Tools, navigate to the 'Network' tab, and select 'Fetch/XHR'. Drop your PDF into the tool. You will see that zero HTTP POST requests or file upload payloads leave your device. You can even disconnect your internet or switch to Airplane Mode and inspect metadata 100% offline.

Almost every PDF creation engine embeds identifying signatures. Microsoft Word generates files with 'Microsoft: Print to PDF' or 'Word for Microsoft 365'; Apple macOS uses 'Quartz PDFContext'; Google Chrome outputs 'Skia/PDF'; LaTeX workflows stamp 'pdfTeX' or 'XeTeX'; while publishing tools stamp 'Adobe PDF Library' or 'PrinceXML'. These fingerprints are essential for verifying document provenance.

Yes. When raw digital camera photos or smartphone screenshots are inserted directly into documents without pre-compression, their internal EXIF data streams—including camera model, exposure settings, shutter speed, and GPS coordinates—can remain embedded in image XObjects inside the PDF binary.

PDF/A (ISO 19005) is an internationally standardized profile tailored for long-term digital preservation of electronic documents. When inspecting metadata, a PDF/A document includes explicit XMP tags (such as pdfaExtension and pdfaid:conformance) declaring its compliance level (e.g., PDF/A-1b, PDF/A-2u), guaranteeing that embedded fonts, color spaces, and structural elements remain archivable for decades.

Double-blind peer review requires that reviewers have no knowledge of the authors' identities. Authors submitting manuscripts must inspect the /Author and /Creator metadata fields to ensure university affiliations, co-author names, and local computer usernames are completely stripped before submitting papers to academic editorial portals.

Yes. PDFs.lol is completely free with no usage caps, no daily quotas, and no subscription walls. Because processing is executed by your own computer's processor in browser RAM, there are zero server costs for file processing, allowing us to offer unlimited, privacy-first tools to everyone.