Show HN: PDF tools that run in the browser, no upload

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pdfcdf — free, private PDF tools in your browser

Portable & Common Document Format<br>Free online PDF tools,<br>private in your browser.<br>Every document tool, in one calm place. Merge, split, edit and convert PDFs in seconds — your files never leave your device. No ads, no sign-up, no fuss.

Most popular

Merge PDF<br>Combine several files into one, in any order you like.<br>Open tool →

Edit PDF<br>Add text, cover content, highlight and place images on any page.<br>Open tool →

Compress PDF<br>Shrink a large PDF so it fits an email or upload limit.<br>Open tool →

Dark Mode PDF<br>Read any PDF in dark mode, right here — no more blinding white pages.<br>Open tool →

Split PDF<br>Pull out single pages or break a file into separate documents.<br>Open tool →

JPG to PDF<br>Turn photos and images into a single, shareable PDF.<br>Open tool →

Organize

Merge PDF<br>Combine several files into one, in any order you like.<br>Open tool →

Split PDF<br>Pull out single pages or break a file into separate documents.<br>Open tool →

Extract Pages<br>Pick the pages you want and save them as a new PDF.<br>Open tool →

Organize Pages<br>Drag to reorder pages and drop the ones you don’t need.<br>Open tool →

Delete Pages<br>Remove the pages you don’t need and keep the rest.<br>Open tool →

Rotate PDF<br>Turn pages the right way up — one page or all at once.<br>Open tool →

Convert

JPG to PDF<br>Turn photos and images into a single, shareable PDF.<br>Open tool →

PDF to JPG<br>Save each PDF page as a high-quality JPG or PNG image.<br>Open tool →

PDF to Text<br>Pull the plain text out of a PDF as a .txt file.<br>Open tool →

HTML to PDF<br>Turn an HTML snippet or page into a clean PDF.<br>Open tool →

PDF to PowerPoint<br>Turn each PDF page into a slide in a .pptx deck.<br>Open tool →

Edit

Edit PDF<br>Add text, cover content, highlight and place images on any page.<br>Open tool →

Dark Mode PDF<br>Read any PDF in dark mode, right here — no more blinding white pages.<br>Open tool →

Compress PDF<br>Shrink a large PDF so it fits an email or upload limit.<br>Open tool →

Crop PDF<br>Trim the margins off every page by a set amount.<br>Open tool →

Resize PDF<br>Scale every page to A4, Letter or Legal size.<br>Open tool →

N-up (Pages per Sheet)<br>Place 2 or 4 pages on a single sheet to save paper.<br>Open tool →

Page Numbers<br>Add page numbers anywhere, in the format you choose.<br>Open tool →

Bates Numbering<br>Stamp sequential legal-style numbers with a prefix.<br>Open tool →

Watermark<br>Overlay text like “Draft” or “Confidential” on every page.<br>Open tool →

Rename PDF<br>Give your PDF a clean new file name to download.<br>Open tool →

Sign & fill

Sign PDF<br>Draw or type your signature and drop it on the page.<br>Open tool →

Fill & Sign<br>Fill in a PDF form’s fields and lock the result.<br>Open tool →

Scan & OCR

Scan to PDF<br>Capture pages with your camera and save them as a PDF.<br>Open tool →

OCR PDF<br>Read text from scanned PDFs and images, in your browser.<br>Open tool →

Secure & review

Flatten PDF<br>Lock form fields so they become permanent, fixed content.<br>Open tool →

Edit Metadata<br>Change the title, author, subject and keywords.<br>Open tool →

Compare PDF<br>Spot the differences between two PDFs, page by page.<br>Open tool →

Coming soon<br>A full document workspace<br>Conversions, security, signing and AI — all landing after v1. Everything below runs in your browser or arrives shortly behind it.<br>Convert

PDF to Word<br>PDF to Excel<br>Word to PDF<br>PowerPoint to PDF<br>Excel to PDF<br>PDF to PDF/A

Optimize

Compress<br>Repair<br>Deskew<br>Grayscale

Organize

Flip<br>Header & footer

Edit & sign

Create forms<br>Annotate<br>Redact

Security

Protect<br>Unlock

Scan & data

Extract images<br>Bookmarks

AI tools

AI summarizerNEW<br>Translate PDFNEW

Frequently asked questions<br>What is pdfcdf?+pdfcdf is a free online toolkit for working with PDFs and documents — merge, split, delete pages, rotate, sign, convert, OCR and more. Every tool runs entirely in your browser, so it's fast and completely private.<br>What can I do with pdfcdf?+You can merge and split PDFs, delete or reorder pages, add page numbers or watermarks, sign and fill forms, convert PDF to JPG/Word-style images and back, run OCR on scans, compress and crop, and much more — all free and without sign-up.<br>What file types are supported?+PDF for the PDF tools, and JPG, PNG, WEBP and GIF images for the image tools. OCR also works on scanned image files.<br>Is there a file size limit?+There's no hard limit — since files are processed on your own device, the practical limit is what your browser and device can handle. Most everyday documents work instantly.<br>Is pdfcdf free to use?+Yes. Every tool on pdfcdf is completely free, with no account, no watermarks, and no limits on how many files you process.<br>Are my files safe? Do they get uploaded?+Your files never leave your device. Every tool runs entirely in your browser, so your documents are processed locally and are never uploaded to a server or seen by anyone.<br>Do I need to create an account or sign up?+No. pdfcdf works instantly with no sign-up, no email, and no software to install — just open the tool and go.<br>Does it work on mobile phones and...

tool open pages page sign browser

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