A "clean" PDF is not one thing — it is four separate layers that each need clearing, and the order matters. Missing the invisible layers is the most common mistake when preparing a file for external use.
Try it on a copy of your document — keep the original until you have checked the result.
PDF CleanupBased on how PDF annotation objects, page content streams and document metadata are defined in the PDF specification, and on the behaviour of PDFnoted’s own tools. Reviewed periodically.
General guidance for document handling only; not legal advice. Where a document may be used as evidence, keep an unmodified original and consult a qualified professional.
Four layers: visible annotations and watermarks, hidden or off-page objects, document metadata, and embedded extras such as attachments or scripts.
Metadata often contains author names, organisation details, internal file paths and timestamps — none visible on screen, all carried with the file.
It can, particularly by removing embedded attachments, fonts and thumbnails, but compression is the tool to use if size is the goal.
Annotation and metadata removal should not. Pixel-level watermark removal can affect appearance where the watermark sat.
Yes — batch cleanup applies the same rules across files. Spot-check the first and last output.
Choose a browser-local tool for sensitive documents so the file never leaves your device.
Metadata, hidden objects and revision history typically persist through ordinary saving, which is why explicit cleanup is needed.
Check document properties, copy the text out and skim it, and open the file in a second viewer to catch rendering differences.