Nirvoy PDF

Nirvoy PDF is a web-based PDF toolkit: merge, split, compress, convert, sign, redact, and more — 26 PDF tools plus 5 image tools — running entirely in the user's browser. It is a Next.js static site on Firebase Hosting, and every working tool processes files on-device with pdf-lib and pdfjs-dist. There is no server, no account system, and no upload step: files never leave the device.

Tagline: Fold. Fly. Done. The promise is simple — transform PDFs effortlessly, with no signup and no watermark, free.

Most online PDF tools ask you to upload your files to somebody else's server before they do anything. For contracts, IDs, and financial documents, that upload is the product's biggest trust problem — and most tools never explain what happens to your file after the job is done.

The second problem is fragmentation: one site merges, another compresses, a third converts. Each has its own upload flow, its own limits, and its own account wall.

• Trust gap: uploading private documents to a server you don't control, with no clear data story.

• Fragmentation: single-purpose tools scattered across sites, each with its own flow and limits.

• Account walls: signups and watermarks gating basic operations a browser can do locally.

User goals: get a PDF job done in under a minute. Never wonder where the file went. No account, no install, no watermark.

Product goals: be the private default for everyday PDF tasks. Say plainly what each tool can and cannot do. Keep the client-side toolset free.

Proposed metrics (not measured): task completion rate per tool. Return usage within 30 days. Share of sessions using more than one tool. No analytics or usability results are published for this product — the metrics above are proposed, not measured.

26 working PDF tools, each on its own /tools/<slug> route with drag-and-drop upload, file list, options, progress and error handling, and a real downloadable output. 5 image tools (resize, compress, crop, convert, rotate) round out the toolkit.

• Core edits: Merge, Split, Organize (reorder/delete pages), Rotate, Crop.

• Conversion: PDF to Word / PowerPoint / Excel / JPG / Markdown; Word / PowerPoint / Excel / JPG / HTML to PDF; Scan to PDF.

• Marking: Sign (drawn signature), Watermark, Page numbers, Redact.

• Utilities: Compress, Repair — plus the 5 image tools.

Privacy as architecture, not a promise: because every tool runs client-side, the privacy claim is structural — there is nowhere for files to be sent. The UI never has to ask for trust it cannot verify.

Honest limits in the UI: where a tool has a real constraint, the interface says so up front — compression cannot recompress embedded images, the signature is a drawn image rather than a certified digital signature, and redaction covers content visually while the text layer stays in the file. Limits stated before use beat apologies after.

No fake buttons: tools that need a server (unlock, protect, PDF/A, translate) are marked 'Soon' instead of pretending to work. A disabled honest label keeps more trust than a fake control.

One route per tool: each tool is a shareable page with the same upload, options, download pattern — learning one tool teaches all of them.

Client-side has edges: image-heavy PDFs barely shrink on compress, HTML-to-PDF renders as images (text is not selectable), and format conversions carry text faithfully but not complex layouts.

No server yet: the 'Soon' tools need a backend that does not exist in this version. Nothing on the roadmap is presented as shipped.

No published research: there is no usability study or analytics readout behind this case study — the decisions above are product rationale, labelled as such.

Private by design, honest about limits: a PDF toolkit that never sees your files.

Live product: pdf.arshakuix.site. Back to [all work](/work).