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NJHTools

Free PDF Tools That Never Upload Your Files

These free PDF tools merge, split, rotate, reorganize and convert PDF files without uploading them anywhere. Your PDF is read and rewritten by JavaScript running in your own browser — pdf-lib for editing pages and Mozilla's pdf.js for rendering them — so the file never reaches a server. You don't have to take our word for it: open your browser's DevTools, switch to the Network tab and run any tool; you will see no request carrying your document.

Merge PDF combines several files into one in the order you choose. Split PDF extracts pages from a PDF into a new file, or breaks it into separate files every N pages or by custom ranges, and Rotate PDF turns individual pages or the whole document. Organize PDF lets you rearrange PDF pages, delete or duplicate them and insert blank pages, while PDF to JPG renders every page as a JPG or PNG image at 72, 150 or 300 dpi. Going the other way, the Image to PDF tool in the image collection combines photos and scans into a single PDF.

There is no signup, no watermark, no daily limit and no file-size paywall. The only practical ceiling is your device's memory: very large PDFs with hundreds of high-resolution pages may be slow or fail on a phone, and work best on a desktop browser.

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Frequently Asked Questions

Are my PDFs uploaded to a server?↓

No. NJHTools PDF tools process files entirely in your browser with pdf-lib and pdf.js. The PDF is never uploaded, stored or logged. You can confirm this yourself by opening DevTools → Network while you merge, split or convert a file.

Is there a file size or page limit?↓

The site imposes no file-size limit, page limit or paywall. Because processing happens on your device, the real limit is available memory: very large or image-heavy PDFs can be slow or fail on phones and older computers, so use a desktop browser for those.

Can I edit password-protected PDFs?↓

Not currently. Encrypted or password-protected PDFs are not supported. Remove the password in the app that created the file (or a PDF reader you are authorized to use) and then open the unlocked copy here.

Can I compress a PDF?↓

Not yet — PDF compression is not offered at the moment. If your PDF is mostly scanned images, you can shrink the images first with the Image Compressor and rebuild the document with Image to PDF.

Do I need Adobe Acrobat to merge or split PDFs?↓

No. Merging, splitting, rotating, reordering pages and converting PDF pages to JPG or PNG all work in any modern browser, including Chrome, Edge, Firefox and Safari on desktop or mobile, with nothing to install.

Do the PDF tools add a watermark or reduce quality?↓

No. Output files carry no watermark. Merge, split, rotate and organize keep the original pages unchanged and never re-render them, so text stays selectable and images keep their original quality. Bookmarks and fillable form fields are not kept when you merge or organize. PDF to JPG renders pages at the resolution you pick (72, 150 or 300 dpi).

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