TechclickTechclick PDF Studio BETA

PDF Studio — runs in your browser

Merge, split, rotate, watermark and reorganise PDFs. Every tool below runs on your own device.

Your file never leaves this device. These tools read your PDF into browser memory, edit it there and save it back to your downloads folder. Nothing is uploaded, so there is no server copy to trust, expire or delete.
100% free No upload No signup No daily limit Works offline

1 · Choose a tool

18 tools, all running locally. See the full catalogue →

2 · Add your file

PDF files only.

Drop files here
or click to choose · nothing is uploaded

    3 · Options

    Pick a tool above.

    Tools that need a server

    Being straight with you about what this page cannot do.

    OCR, compression, password protect/unlock, and conversion to Word, Excel, PowerPoint or images cannot be done honestly inside a browser tab — they need heavy native libraries running server-side. Those tools are temporarily offline while we rebuild that backend. Everything listed above this box is fully working right now and always will be, because it needs no server at all.

    Free online PDF editor that does not upload your file

    Most “free” online PDF tools work the same way: you upload your document to somebody else’s server, their software edits it, and you download the result. That is fine for a holiday itinerary. It is a poor idea for a salary slip, an Aadhaar copy, a signed contract, a medical report or a board resolution — documents that a lot of people are editing when they reach for a PDF tool in the first place.

    Techclick PDF Studio takes the other approach. The page ships a PDF engine to your browser, and the editing happens on your own machine. Your document is read straight from disk into the tab’s memory. No copy is transmitted, which means there is no retention window to read in a privacy policy and no breach that can expose your file later. You can confirm this yourself: open your browser’s developer tools, switch to the Network tab, and run any tool on this page. You will not see a request carrying your document, because there isn’t one.

    What you can do here

    • Organise pages — merge several PDFs into one, split a file by page ranges, extract just the pages you need, delete pages, reorder them, or interleave two documents (useful when a scanner gives you odd and even pages as separate files).
    • Adjust layout — rotate pages, crop margins, resize to A4 or Letter, print two or four pages per sheet with N-up, and insert blank pages.
    • Add markings — page numbers, a diagonal watermark, headers and footers, or sequential Bates numbering for legal and audit work.
    • Clean up — edit document metadata (title, author, subject, keywords) and strip annotations before sharing.
    • Build from images — turn JPG or PNG scans into a single PDF.

    Does it work offline?

    Yes. Once this page has loaded, the tools continue to work with the network disconnected, because processing a file needs no round trip. That is a useful property on a train, on hotel wifi you would rather not trust, or on an air-gapped machine.

    Is there a file size limit?

    There is no imposed limit and no daily quota, because there is no server cost to ration. The practical ceiling is your device’s memory — a phone will struggle with a 500 MB scanned file that a laptop handles comfortably.

    Who built this

    Techclick PDF Studio is made by Techclick Infosec Pvt Ltd, a network and cybersecurity training company based in Lucknow, India. We built it because our own students kept uploading sensitive documents to random PDF sites, and we wanted something we could recommend without a caveat.