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Everyday Utilities
Open tool Date Difference Calculator
Create a bounded, browser-local date difference calculator with visible assumptions, review guidance, and downloadable output.
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Agriculture & Gardening
Open tool Harvest Date Calculator
Create a bounded, browser-local harvest date calculator with visible assumptions, review guidance, and downloadable output.
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Design, Color & Branding
Open tool QR Code Generator
Create a bounded, browser-local qr code generator with visible assumptions, review guidance, and downloadable output.
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Web & Social
Open tool QR Code Generator
Create a bounded, browser-local qr code generator with visible assumptions, review guidance, and downloadable output.
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PDF & Documents
Open tool Add PDF Digital Stamp
Add a clearly disclosed non-cryptographic operational stamp to selected pages.
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PDF & Documents
Open tool Add PDF Header and Footer
Overlay bounded header, footer, and optional page-number tokens on every page.
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PDF & Documents
Open tool Add PDF Page Numbers
Add sequential visible page numbers with a chosen start, format, and page-edge position.
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PDF & Documents
Open tool Add PDF Watermark
Place a removable Nirmion-tagged text watermark on every page with controlled opacity and position.
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File Converters
Open tool ASS Subtitle to PDF
Convert ASS Subtitle into PDF locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.
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PDF & Documents
Open tool Batch PDF Page Labeler
Apply a consistent page label pattern to an authorised PDF copy.
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File Converters
Open tool BibTeX to PDF
Convert BibTeX into PDF locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.
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PDF & Documents
Open tool Clear PDF Form Values
Clear current widget values while retaining interactive fields.