About Edit PDF

"Edit a PDF" usually means one of a handful of things: combine a few files into one, pull a couple of pages out, shrink the file so it'll upload somewhere, or stamp a CONFIDENTIAL across it before you send it out. We bundled the four we saw people reach for most often into one page instead of making you hunt through separate tools.

Switch between the tabs above — Merge, Split, Compress, Watermark — and each one works independently on whatever PDF you drop into it. Everything runs in your browser using pdf-lib. Your files never touch a server.

How to Use Edit PDF

Pick a tab: Merge PDF, Split PDF, Compress PDF, or Watermark PDF.
Upload your PDF (or PDFs, for Merge) by clicking or dragging into the upload area.
Set the options for that tab — page order for Merge, split mode for Split, compression level for Compress, or text/color/position for Watermark.
Click the action button and wait for processing to finish.
Download the result. Each tab resets independently, so you can jump to another one without losing your place.

Need something more specific than these four? Rotating pages, deleting individual pages, or adding page numbers live on the PDF Page Tools page instead — they didn't fit neatly into a tab here.

Common Use Cases

Combining scanned pages or reports: Merge separate PDF files — scanned pages, chapters, invoices — into one document before submitting or emailing it.
Pulling pages out of a bigger file: Split extracts a page range, breaks a PDF into individual pages, or chops it into fixed-size chunks, useful when only part of a document is relevant to the person you're sending it to.
Getting under an upload limit: Compress reduces file size for government portals, email attachments, or WhatsApp sharing when the original PDF is too large.
Marking a document as draft or confidential: Watermark stamps text across every page — CONFIDENTIAL, DRAFT, a company name — before a document goes out for review or gets shared externally.

Tips for Best Results

In Merge, drag files by the ⠿ handle to fix the page order before you hit merge — reordering afterward means starting over.
In Split, use "Extract page range" when you only need a few pages, and "Split into individual pages" when every page needs to become its own file.
In Compress, start with Low if the PDF is going somewhere quality matters, like print. Medium and High both re-encode embedded photos, so save those for scans and screenshots.
In Watermark, keep opacity under 40% if the underlying text still needs to be readable through the stamp.

Why Use Edit PDF on OurTools.in

Most sites that offer merge, split, compress, and watermark make you visit four separate pages, or worse, upload your file to a server for each one. This page keeps them together and keeps the processing local — nothing you upload here leaves your browser tab. No account, no daily limit, no watermark added to your output unless you're the one adding it.

It's a fast option when you need one of these four things done and don't want to install Acrobat or dig through a cluttered converter site to find the right button.

Limitations to Know About

This page covers merge, split, compress, and watermark only — it doesn't type text onto a form, draw annotations, add a signature, or let you click into existing PDF text to edit it directly. For filling out forms or annotating a document by hand, you'll need different software. Watermark adds a text stamp only, not images or logos. Compress works by restructuring the PDF and, at Medium and High, re-encoding embedded JPEG images — PNG-based or unusually encoded embedded images aren't touched, and results vary a lot depending on what's actually in the file. If your PDF has a user password (one required just to open it), remove that password in Adobe Acrobat or a similar PDF reader before uploading it here — none of these four tools can process it otherwise.

Frequently Asked Questions

Yes, completely free. All processing happens in your browser using open-source libraries. No account, no subscription, no limits.

Yes — add as many PDFs as you need. There is no hard limit. Very large files may take longer since all processing happens in your browser's memory.

Typically 20–60% reduction depending on the PDF's content. PDFs with redundant metadata, unoptimized streams, or embedded resources see the largest gains. Already-optimized PDFs may see smaller reductions.

No — the watermark is added as a text layer on top of existing content. The original content remains intact. Using 20–40% opacity keeps your document clearly readable.

No — everything runs locally in your browser using PDF-lib. Your files never leave your device and are completely private.