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The PDFTron SDK is a comprehensive cross-platform PDF and Office SDK that allows you to write stand-alone, cross-platform and reliable commercial applications. Using PDFTron's iOS SDK, you can build powerful iOS apps that can view, edit, and annotate PDF, Microsoft Office, and other file formats.
After you checked out the samples, gone through get started, here are some next steps.
Basic operations include saving, loading, or multithreaded locking of a document.
Display a document reliably and accurately.
Show/hide buttons, remove menus or customize interactions.
Markup and comment on documents without changing the documents original content.
Convert multiple file types to PDF or from PDF to multiple file types.
Extract data such as text, images, fonts, metadata, and more from a document.
Find text within the contents of a document.
Secure a document with a signing fingerprint between sender and receiver.
Redact information from a document.
Convert generic PDFs to PDF/A or validate existing PDF/A documents.
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