ONYXPDF

by Onyx AI Labs
100% private — files never leave this device
Accent

Every PDF tool. Zero uploads.

The big PDF sites make you upload your documents to their servers — then cap your tasks, stamp watermarks and charge monthly. OnyxPDF runs entirely in your browser: no uploads, no sign-up, no watermarks, no daily limits. Even the scanner features CamScanner charges $4.99/mo for are free here. Plus a full image suite: compress a photo to an exact KB for form uploads, resize for social media, convert HEIC, make passport photos — same zero uploads.

PDF tools
Image tools
Why OnyxPDF

Private by architecture

Your files are processed by JavaScript on this device. There is no upload server — open your browser's Network tab and check. Works offline once loaded.

No limits, no paywall tricks

Smallpdf stops free users at 2 tasks a day. Sejda at 3 per hour. Here there is no counter at all — the only limit is your device's memory.

Scanner features, free

Perspective fix, document filters and multi-language OCR (English, Urdu, Arabic, Hindi + more) — the features CamScanner puts behind Premium are built in here.

No watermarks. Ever.

Some "free" tools stamp their brand on your documents. OnyxPDF output is exactly your document — nothing added, nothing hidden.

All 50 tools — full index

PDF tools

  • Merge PDF — Combine any number of PDFs into one file, in the order you choose. No 25-file cap, no size cap.
  • Split PDF — Pull out the pages you need: one combined file, one file per range, or every page on its own.
  • Rotate Pages — Turn pages 90°, 180° or 270° — the whole document or just the pages you pick.
  • Organize Pages — See every page, drag to reorder, delete pages, rotate singles, insert blanks and reverse the order.
  • Flatten PDF — Bake form fields into the page so the filled values can't be edited or lost.
  • PDF Info & Metadata — See page count, page sizes, PDF version, author data and embedded metadata — without uploading the file anywhere.
  • Compress PDF — Shrink a PDF for email or upload. Image-based compression with honest before/after sizes — plus a lossless mode.
  • Grayscale PDF — Convert a colour PDF to black & white — cheaper printing, smaller files, cleaner scans.
  • PDF to Images — Turn every page into a JPG or PNG at the quality you choose — up to print-sharp 300 DPI.
  • Images to PDF — Make a PDF from JPG, PNG or WebP images — you control page size, orientation and margins.
  • Watermark Text — Stamp your text on every page — your words, size, colour, angle, transparency and layout. Tools elsewhere paywall these options.
  • Page Numbers — Add page numbers in any corner, in the format you like, starting from any number.
  • Bates Numbering — Sequential Bates stamps for legal and records work — prefix, zero-padded numbers, your start point.
  • Header & Footer — Running headers and footers on every page — with {page}, {total} and {date} placeholders.
  • Edit Metadata — Set the title, author, subject and keywords stored inside the PDF — the details readers and search tools display.
  • Extract Text — Pull all the text out of a PDF — read it, copy it, or save it as a .txt file. (Scanned PDFs need the OCR tool instead.)
  • PDF to Word — Convert a text-based PDF into an editable .docx — paragraphs and headings rebuilt from the text. Honest best-effort: complex layouts won't be pixel-perfect.
  • PDF to CSV / Excel — Pull tabular text out of a PDF into a CSV you can open in Excel or Google Sheets. Best-effort column detection.
  • Compare PDFs — Diff the text of two PDFs line by line — see exactly what was added, removed or kept between versions.
  • Word / Text to PDF — Turn a .docx or .txt into a clean PDF — headings, bold and lists carried over. Basic formatting, honestly done.
  • Crop Pages — Trim margins or cut a page down to the part that matters — drag a box on the page, or type exact margins.
  • Resize / Scale Pages — Convert every page to A4, Letter, A5 or Legal — or scale by a percentage — while keeping content fitted and centred.
  • N-up (Pages per Sheet) — Print 2, 4, 6 or 9 pages on one sheet — handouts, proofs and paper-saving in seconds.
  • Fill PDF Forms — Open a fillable PDF, type into its real form fields, and save a completed copy — optionally flattened so it can't be changed.
  • Sign PDF — Draw or type your signature, drop it exactly where it belongs, and bake it into the PDF. No account, no “e-sign” paywall.
  • Edit PDF (Add Content) — Add text, images, shapes and whiteout boxes onto any page, exactly where you drag them. (For changing existing text, whiteout + retype — we won't pretend otherwise.)
  • Annotate & Highlight — Highlight passages with translucent colour, draw freehand, and add note labels — then bake it all in.
  • Redact PDF (True Removal) — Black out sensitive content so it's actually gone — marked pages are re-rendered as images, so the hidden text can't be copied back out.
  • Scan Enhance — Photograph a document, drag the corners straight, apply pro document filters, save as PDF. The CamScanner workflow — free, no watermark, no cloud.
  • OCR — Image & Scan to Text — Recognise text in photos and scanned PDFs — English, Urdu, Arabic, Hindi, Spanish, French, German. Runs on your device; CamScanner charges for this.
  • Protect PDF (Password) — Lock a PDF with a real password — AES-256 encryption powered by qpdf, plus print/copy/edit permission controls. Done locally, of course.
  • Unlock PDF (Remove Password) — Remove password protection from a PDF you own — you supply the password, qpdf removes the encryption locally.

Image tools

  • Compress Image — Shrink JPG, PNG and WebP photos in batches — or hit an exact form limit with Compress to KB (20 / 50 / 100 KB…).
  • Resize Image — Exact pixels, percentage, or one-tap social sizes — YouTube thumbnail, Instagram, Facebook cover, WhatsApp DP.
  • Convert Image — PNG ↔ JPG ↔ WebP ↔ BMP in batches, at the quality you pick. No upload, no reduced resolution — ever.
  • Crop Image — Drag a box on the photo — free-form or locked to 1:1, 4:3, 16:9 or passport ratio. Cropped at full resolution.
  • Rotate & Flip Image — Turn photos the right way up: 90° steps, flip horizontal/vertical, or a free angle. Batch-friendly.
  • Watermark Image — Stamp your name, © line or logo onto photos — position, size and transparency you control. Batch, like iLoveIMG's paid flow, free here.
  • Image Editor — Brightness, contrast, saturation, hue and classic looks — with live preview and one-tap filter presets.
  • Add Text / Meme Maker — Classic top & bottom meme captions, or text placed anywhere — font, size, colour and outline under your control.
  • Passport Photo Maker — Exact-size ID photos at 300 DPI — 35×45 mm (CNIC, passport, Schengen) or 2×2 in (US visa) — plus a printable 4R sheet of copies.
  • HEIC to JPG — Convert iPhone HEIC/HEIF photos to JPG at full resolution, on your device. (iLoveIMG's free tier quietly shrinks them — this doesn't.)
  • Combine Images — Stitch photos into one grid collage — choose columns, spacing and background colour.
  • Split Image — Cut one photo into a grid of tiles — 3×3 for Instagram profile grids, or any rows × columns you like.
  • Circle & Rounded Crop — Round the corners of any photo — or make a perfect circle profile picture. Transparent PNG out.
  • SVG to PNG — Turn vector logos and icons into crisp PNGs at any size — transparent background preserved.
  • Favicon Generator — One image in — a complete favicon set out: ICO + 16, 32, 48, 180, 192 and 512 px PNGs, zipped together.
  • Color Palette from Image — Pull the dominant colours out of any photo — hex codes with one-click copy for your designs.
  • Blur & Pixelate — Hide a face, plate or screenshot secret: drag a box over it, then blur or pixelate just that region.
  • Background Remover — Remove a photo's background with an on-device AI model — transparent PNG out, or a solid colour behind your subject. The photo itself is never uploaded.

Compare & learn