No uploads. No accounts. No watermark on the output. Filoraio lets you draw, type, or upload a signature and place it on any PDF — locally on your device, with a live preview before you download.
Filoraio runs the merge directly inside your browser using a small WebAssembly engine. Nothing is uploaded, nothing is queued, and you can verify it yourself — open your browser’s DevTools, switch to the Network tab, and watch it stay quiet.
They’re read into your browser’s memory through a standard file picker.
The merge runs locally — no request leaves your device while it processes.
The combined PDF lands in your downloads folder, the same way any other download would.
No upload bar, no progress spinner waiting on a server. Works offline once the page is loaded.
From upload to signed download in under a minute. The signature stays on your device the entire time — no upload, no account, no email link.
Drag the PDF you need to sign onto the picker, or click to choose. Your file stays in this tab — no upload, no server roundtrip.
Draw with mouse or finger, type your name in a cursive font, or upload a PNG of your hand-signed signature. Switch modes any time — the preview updates immediately.
Pick which page (last page is the default), choose one of nine position anchors, and use the size slider to scale the signature to fit. The preview shows the result as you adjust.
Click Sign and download. The signed PDF saves to your device — no watermark, no expiry, no account needed to download it again later.
Anywhere a PDF needs a signature and signing up for a corporate eSignature service feels like overkill, this is the tool you reach for.
Sign a client SOW or invoice within minutes of receiving it — no DocuSign account, no email-link round-trip, just sign and return.
Initial each page of a listing agreement or addendum on a phone, then send the signed PDF back the same day.
Sign retainer letters, NDAs, and engagement agreements quickly without routing them through the firm's eSign platform for low-value matters.
Counter-sign offer letters and policy acknowledgements after the candidate returns them, before filing in the personnel record.
Sign internship agreements, loan applications, and rental contracts without paying for an eSignature subscription.
Sign a school permission slip, a tax form, or a one-time waiver and email the signed PDF back the same day.
Four common reasons people search for a way to sign a PDF online — and the exact workflow each one collapses into.
A contract arrives by email while you're out. Open this page in your phone's browser, drop the PDF, draw your signature with your finger, anchor it to the bottom-right of the last page, and email back the signed copy in under two minutes.
You scanned your handwritten signature years ago as a transparent PNG. Upload it once, position it on the page, and download — same signature you'd use on paper, no need to re-create one for each tool.
Your lawyer wants initials on every page plus a full signature on the last. Sign with the cursive name on All Pages first, then re-open the result and add a larger signature on just the last page.
A form has a signature line and a date line. Sign once with your name (bottom-right anchor), re-upload the result, type today's date as a 'signature' in the formal cursive font, and place it bottom-left — two signatures, one tool, no install.
Four small habits that turn a quick signature into a clean, professional one — whether you're signing one document or fifty.
Mouse-drawn signatures look stiff because the cursor doesn't follow a wrist-pivot motion. If you have a touchscreen device or an Apple Pencil / Wacom pen, use it — the result reads as a real signature instead of a digital sketch.
A typed cursive signature reads cleanest at 1-3 words. Long full names ("Dr. Michael Christopher Anderson III") render small to fit the canvas and lose definition. Use the shortest accepted form of your name (initial + last name is common in business signatures).
A JPG signature always carries a white (or coloured) rectangle behind the strokes — it looks like a sticker stamped on the PDF. A transparent PNG only shows the signature strokes themselves, perfectly blending into the document.
A signature smaller than ~15% of page width looks like an afterthought; larger than ~40% looks aggressive. The 20-30% range matches what handwritten signatures look like on printed paper, which is what your reader subconsciously expects.
Side by side with the average online PDF signer and eSign service — including the ones with millions of monthly users.
| Feature | Filoraio | Typical online PDF tools |
|---|---|---|
| Where the signature is stored | Only on your device | Stored on their servers |
| Account required | No | Required for full features |
| Signature mode | Draw, type, upload — all free | Draw often paid-tier only |
| Watermark on signed PDF | None | Often added on free tier |
| Daily signing cap | Unlimited | Often 3 documents per month |
| Signed copy hosted somewhere | No — only on your device | Often retained in their cloud |
Quick answers to the things people ask most often before using this tool.
In most countries — yes. The US (ESIGN Act, UETA), EU (eIDAS Regulation), UK (Electronic Communications Act), Canada (PIPEDA), India (IT Act), and Australia (ETA) all recognise electronic signatures as legally binding for the vast majority of contracts. There are narrow exceptions (wills, some real-estate transfers, certain notarised documents) where wet-ink is still required — consult a lawyer for those.
Yes. No account, no email, no daily quota, and no watermark on the signed document. The page is supported by ads — never the file you download. Sign as many documents as you need.
Nowhere outside your browser. The signature image and the PDF are both held in your device's memory while you work, combined locally using an open-source PDF engine, and the signed PDF downloads to your device. Filoraio's servers never see either one.
Yes — and finger-drawing on a touchscreen produces a much more natural-looking signature than mouse-drawing on a desktop. Open this page in Safari (iOS) or Chrome (Android), drop your PDF, switch to Draw mode, and sign with your finger. The signed PDF saves directly to Files (iPhone) or Downloads (Android).
Yes. The canvas uses the Pointer Events API which treats stylus input the same as touch — pressure isn't recorded (PDF signatures don't carry pressure data anyway), but the smooth tracking of a Pencil produces signatures that look closer to wet-ink than any mouse-drawn alternative.
Yes. Pick the Upload mode and choose a PNG or JPG of your signature. Transparent-background PNGs work best — they blend cleanly into the PDF with no visible box behind the strokes. JPGs work too but always include a white background.
Yes. The page selector offers Last page (the default — where most signatures go), All pages (initial every page, common for contracts), or Specific pages (custom ranges like "1, 3-5, 12"). Each selected page gets the same signature at the same position.
20–30% of page width is the sweet spot for most documents. Smaller than 15% looks like an afterthought; larger than 40% reads as aggressive. The Size slider lets you fine-tune — the live preview shows the result instantly.
Filoraio handles owner-restricted PDFs (printing/copying locks) automatically — the restrictions come off as part of the signing process. For PDFs with user passwords (encryption that requires a password to open), unlock the file first with our Unlock PDF tool, then sign the unlocked output here.
Yes — and in Preview (Mac), Foxit, Chrome's built-in PDF viewer, every browser, and every mobile PDF reader. The signature is embedded as a standard PDF image object using the same drawing primitives Acrobat uses internally. There's no Filoraio-specific format or dependency.
Yes — sign the PDF once with your signature, download it, then open the signed output here again and add a second signature (with the date typed in cursive, or with initials). Two passes, but the workflow is identical each time and the second signature respects the first.
Legally, both are valid in countries that recognise electronic signatures. Aesthetically, a drawn signature looks like your real signature; a typed cursive signature looks consistent but obviously computer-generated. For internal documents or low-risk contracts, typed is fine; for client-facing or legal documents, drawn or uploaded reads more naturally.
If you haven't downloaded yet, just tweak the settings (change position, clear the canvas) — the next preview overwrites the previous one. If you've already downloaded a signed PDF and want the unsigned version back, re-upload your original — the signed version is a copy, your source PDF is untouched.
There's no hard cap. The signing runs in your browser's memory — the practical limit is your device's available RAM. Most browsers handle 100+ MB PDFs without trouble; very large scanned documents (500+ MB) work too but take a few seconds longer to render the preview.
Tools picked because they pair naturally with the one above — the next step in a typical PDF workflow.