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While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:
Guides:- PDFTron SDK Demo/Trial for Cross-Platform (Core) - Common questions
- PDFTron Custom Security Handler on Cross-Platform (Core) - Decrypting a PDFTron Custom secured document using the password and application custom id
- Code samples for searching PDF text or images on Cross-Platform (Core)
- Cross-Platform (Core) PDF API - About the PDFTron SDK