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File Cleaner (document properties / EXIF / GPS / hidden characters)

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How to use
This page shows exactly which metadata a file carries and lets you remove whatever you tick. Metadata is information attached on top of the content: for images, the camera, lens, exposure settings, capture date, GPS coordinates and editing software; for Office documents, the author, last modified by, company, template path, total editing time, revision traces and the metadata of embedded pictures; for PDF, the title/author, XMP, attachments and file ID. Text may also contain zero-width or bidirectional control characters that are invisible in any text editor yet can still be detected.Typical uses: bid documents, résumés, contracts and quotations that you hand to someone else — clean them first so authors, devices, file paths and locations do not travel with them.
Word / Excel / PPT (docx / xlsx / pptx): the OOXML property parts are parsed to list the author, last modified by, company, template path, total editing time, revision count and custom properties, plus the EXIF / GPS data of pictures embedded in the document. Ticking an entry rewrites the property parts and removes invisible characters from the body, headers/footers and comments.
PDF: the document information dictionary (Info), the XMP package, the file ID and embedded attachments are read and listed field by field. Ticking an entry rebuilds the document without the selected items, leaving the page content and layout untouched.
Images: EXIF / GPS, XMP, IPTC (APP13), ICC and any text comments written into the file are read. JPEG / PNG are stripped byte by byte with no re-encoding and no quality loss; other formats have to be re-encoded.
Technical limits (please read)
  • Watermarks and headers/footers can also be removed. This page does its best to find suspected watermarks — VML text/image watermarks in Word headers, Excel sheet backgrounds, text and pictures on PowerPoint masters and layouts, text and images repeating across PDF pages, semi-transparent content, /Watermark and /Stamp annotations, layers named "Watermark" — plus any text or image in headers and footers, each listed together with where it appears. Every entry has a checkbox; ticked entries are removed along with the metadata. Detection is heuristic, so expect occasional misses or false positives — check the content first.
  • Removing headers and footers cannot be undone. They often carry page numbers, company names and logos; once an entry is ticked it is gone from the result file. Tick only the entry you really do not need.
  • Content drawn into the pixels is not handled. If a watermark, timestamp or place name was rendered into the image itself, it is image content rather than metadata and cannot be removed here.
  • Some fields can only be removed as a whole. IPTC / Photoshop (APP13) and XMP are stored as complete packages and cannot be edited field by field.
  • Lossless only for JPEG / PNG. Other image formats (TIFF / WebP / GIF / BMP …) must be re-encoded, which may slightly change quality.
  • Digital signatures will break. Any modification invalidates electronic signatures and integrity checks — this is unavoidable.
  • No guarantee of full anonymity. After clearing metadata, the content itself may still reveal information: wording, fonts, layout fingerprints, the picture itself, the background of a scan.
  • Only what is hidden can be found. The processor can find hidden, extremely small or background-coloured text, but it cannot find text that looks normal and is easily readable by the human eye.