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Edit PDF metadata through a GUI or command line

PDF conversions and document cleanup in one suite

Command-line PDF processing with bookmarks, metadata, and layout

Java PDF assembly, booklet layout, and metadata tools

Edit and copy image metadata online

A Windows PDF toolkit for conversion, printing, and assembly

Search Crossref’s deposited scholarly metadata and retrieve records by DOI or other publication identifiers.

WordPress metadata and sitemap management with optional advanced SEO tools.

Read and write image metadata in many formats

Manage EXIF, IPTC, XMP and ICC metadata

Edit image metadata and exchange it with tables

PDF conversion, OCR, and page processing in a browser

PDF assembly, extraction, numbering, and batch utilities

Collaborative PDF editing and fillable forms

PDF conversion with editing and batch tools for Windows

PDF reading, forms, and annotations on mobile devices

Windows PDF editing with signing and batch redaction tools

Automate PDF conversion, parsing, and document operations

Windows PDF editing with OCR, export, and document snapshots

Retrieve Spotify catalog data and manage user-authorized library resources.

Self-host PDF processing with a browser interface and API

PDF editing and conversion with desktop and mobile editions

Research app-store keywords, prepare metadata and monitor search visibility across app markets.

Generate Craft CMS metadata, structured data and sitemaps from the site's content model.