NicerToolsDocumentsAdd Watermark to PDFAdd Watermark to PDFOverlay custom texts or image watermarks onto all pages inside a PDF.Loading WorkspaceExplore more modulesOther tools in the Documents suiteView full suitePDF Metadata Stripper & AnonymizerStrip sensitive metadata, authorship history, device profiles, and hidden revisions from PDF documents for privacy.Join FilesJoin files to reconstruct the original document.Random File GeneratorCreate dummy files with random contents for testing.