Short, honest answers about pricing, privacy, redaction, stamping, and where the tool's limits are. If your question isn't here, email support@jupitersense.com.
A local-first, legal-grade PDF tool that runs entirely in your browser. It does permanent text redaction, Bates numbering, single and batch exhibit stamping, document compare, OCR, PDF/A archival, fill & sign, edit text, and the usual merge / split / compress / pages / watermark / protect — plus a matter model that organises PDFs into cases.
Nothing uploads — files are processed on your device. No account required. No subscription. Works offline after first load.
Free tier: 1000 operations per month with every feature unlocked. No account, no card, no time limit. For many solo practitioners, the free tier works indefinitely.
Pro: $39 one-time for unlimited use. It's not a subscription — you pay once and that version is yours to use forever. You can also try Pro free for 14 days before buying.
Every tool is fully unlocked on the free tier — redaction, Bates, exhibit stamping, compare, OCR, PDF/A, merge, split, convert, all of it. No watermark, no feature gate.
Each successful save counts as one operation. The counter resets on the 1st of each calendar month, local time. If you cross 1000 in a month, work still continues — we never hard-block you. The app just suggests upgrading and keeps working.
No. All processing happens in your browser, on your device. The only network traffic is the one-time app download the first time you visit. After that, JDataSuite works fully offline.
We have no server that handles your files. There is no cloud to opt out of because there is no cloud. You can verify this yourself — open your browser's Network tab while redacting a PDF; you'll see zero requests. For firms that need it, the app has a verified-offline mode that hard-blocks any network egress.
Yes. Many free tools "redact" by drawing a black rectangle on top of the text, leaving the original text extractable via copy-paste. JDataSuite strips the underlying text from the PDF object model and runs a post-apply verification pass to confirm it's gone.
There are three ways to mark redactions:
Redaction is OCR-aware, so it can find and remove text on scanned pages too, not just digital ones.
Bates numbering: sequential production numbers with prefix presets (PLTF, DEF, EX, CONF, BATES, FILE, or your own), a custom start number, and a provenance JSON sidecar that records what was stamped.
Exhibit stamping: per-document labels for a single file, or a whole batch at once — drop N PDFs and get N consecutive labels. A separator-page mode assembles exhibit binders with a labelled divider before each exhibit.
Yes. Compare aligns the two documents paragraph by paragraph and shows a word-level redline, with moved-text detection and a guard that warns you when the files look like entirely different documents (so you don't get a wall of noise).
There's also a visual page-overlay — the pages rendered with a difference composite (red = removed from the left, green = added on the right), the same idea as Acrobat's compare. Both the text redline and the visual diff export to a PDF you can share or file.
Yes — entirely offline. OCR overlays the recognised words as an invisible text layer on the original, untouched pages. The scan becomes searchable and copyable with no visible change and no rasterising, and tools like the viewer's Ctrl+F or Acrobat can extract the text afterward.
Several languages are supported with automatic language detection, and because the text layer is real, OCR'd scans become redactable by pattern and by list.
Yes. The PDF/A tool classifies the document, routes it through the appropriate conversion path, and assembles a conformant PDF/A for long-term archival and court filing.
Crucially, the output is validated against veraPDF — the reference PDF/A validator — rather than just being flagged with a metadata claim. A fake "PDF/A" that only sets an XMP flag would fail a real validator; ours is built to pass one.
It does fill & sign: fill AcroForm fields, and add a signature you draw, type, or upload, then drag it to the exact spot on the page (or use a 9-cell preset).
Be clear on scope: this is a visual electronic signature, not a certificate-based digital signature (PAdES / PKCS#7). It's perfect for signing where a handwritten-style mark is what's expected. If you need a cryptographic, tamper-evident certificate signature, use Acrobat or a dedicated e-sign service.
Edit Text is an overlay: drag a box on the page, type new text, optionally white out what's behind it, then bake it into the PDF. It's ideal for fixing a typo, adding a missing line, or covering a value.
It does not re-flow or re-extract the document's existing body text — that's a deliberate, honest scope limit. True content-stream editing is a much heavier feature we'd rather not fake.
On open, it prompts for the password (with a retry loop), then decrypts the document in memory so the viewer and every edit tool work — exactly like Acrobat or Preview.
It then asks whether to remove the password or keep the file protected at rest. "Keep" preserves the encrypted copy in local storage and re-prompts when you reopen; "Remove" saves it unprotected. You're asked every time — protection on a legal document is never removed silently. The Protect tool is pre-filled so you can re-lock or change the password in one click.
Yes. JDataSuite has a matter model — organise PDFs into cases rather than loose files. Each matter keeps its own document tabs, scoped highlights and sticky notes, and a cross-document search, so the second document you need to compare or cite is one click away, never a re-open.
On top of that, reading intelligence surfaces defined-term definitions on hover, turns "see Section 4.2" cross-references into click-to-jump links, and finds where one document cites another — all computed on-device.
Acrobat's online tools and Smallpdf upload your file to their servers, process it there, and send the result back. That means every contract, medical record, or privileged document has been on someone else's infrastructure. JDataSuite never transmits your file, and you can verify it in the Network tab.
It also ships two things Acrobat doesn't have in core — paste-a-list bulk redaction and batch exhibit stamping — plus a provable offline guarantee.
Where we're weaker, honestly: no batch/scheduled processing (one file at a time, except exhibit stamping), no REST API, no team/seat licensing, and the signature is visual rather than certificate-based. If you need those, Acrobat is still the right choice.
Yes. JDataSuite is a Progressive Web App (PWA). On first visit the entire app is cached on your device. From then on you can redact, stamp, compare, OCR, and convert on an airplane, in a courtroom, or on a locked-down firm network. Your documents never leave your device.
A Pro license is for one person on one machine at a time. Moving to a new machine is free and takes a minute — the old machine simply reverts to the free tier.
Pro is not a team or per-seat license. If two people in the same firm want Pro, each needs their own. See the Terms of Service for the full wording.
The 14-day free trial is your refund window — full-feature access before you pay a cent. Because you can fully evaluate it first (plus the ongoing 1000 operations/month free tier), Pro purchases are final and non-refundable once the trial ends.
If you'd rather not commit, click Start free trial in the app for 14 days of unlimited use — no card, no account.
Files you saved to disk are unaffected — those live wherever you saved them on your file system.
JDataSuite keeps its settings, matters, usage counter, and licence key in your browser's local storage, encrypted at rest with AES-256 — so clearing that resets the app to a fresh install. The app ships with a multi-tier automatic backup so accidental loss is recoverable — see Settings → Backups.
Your installed copy keeps working — the app and your files live entirely on your device, with no cloud dependency. Licence checks are lightweight validity confirmations; if JupiterSense ever wound down, we would release a final update removing them. The version you installed today continues to process your files. This is a deliberate protection against vendor lock-in.
Email support@jupitersense.com. Because JDataSuite has no account system, please include your license key (for Pro users) so we can verify eligibility for paid support.