Merge PDF
Combine multiple PDFs into one file in your chosen order.
27 free tools that run entirely in your browser.
Files never leave your device — no uploads, no accounts, no cloud.
Pick a tool — your file never leaves the browser tab.
Combine multiple PDFs into one file in your chosen order.
Pull selected pages out into their own separate file(s).
Fix pages that are sideways or upside down, per page or all at once.
Remove unwanted pages from a PDF with thumbnail selection.
Drag page thumbnails into the exact order you want.
Save a page range as a new standalone PDF document.
Crop the visible area of PDF pages to remove margins.
Turn photos or scans into a single PDF document.
Save each PDF page as a JPG or PNG image file.
Create a clean copy before applying real encryption in a PDF app.
Unlock a PDF you already have the password for.
Remove print, copy, and edit restrictions from a PDF.
Shrink file size by downsampling embedded images.
Stamp text or an image watermark across every page.
Number every page automatically with custom position & format.
Change the title, author, subject, and other file details.
Draw, type, or upload a signature and place it on any page.
Fill in an existing fillable PDF form with AcroForm fields.
Highlight text, add comments, and draw freehand on a PDF.
Open and read any PDF in the browser with zoom and search.
Compare two PDFs side by side and highlight text differences.
Attempt to fix a corrupted or malformed PDF file.
Permanently blackout sensitive text and information.
Lock form fields and annotations into a single uneditable layer.
Convert colorful PDFs to black and white to save ink.
Add mechanical stamped Bates numbers for legal documents.
Extract text from scanned PDFs locally. (Recommended: 1-3 pages)
Your files are processed in your browser's memory. Nothing is ever sent to a server.
All libraries are executed on your device. The tools use your local CPU and memory for maximum privacy.
No upload queues, no waiting for a server. Processing happens locally at full speed.
No subscriptions, no hidden fees, no "pro" tiers. Every tool is free, forever.
Pick from 22 free PDF tools. No login, no setup, just click.
Drag and drop or browse. Your file is loaded into your browser only — never uploaded.
Your file is processed locally and the result downloads straight to your device.
"Your file never leaves your device."
This is a technical fact, not marketing copy. No analytics, no CDN file transmission, no hidden uploads.
Every tool below runs on your device, not our servers. That's not a policy promise — it's how the code is written.
Look closely at any popular PDF website and you'll usually find a catch: two or three tasks per day before you're asked to sign up, a 15MB file-size ceiling, or a watermark stamped across your output. These limits exist because processing your file costs the provider server time and bandwidth. AcharyaML PDF doesn't have this problem because it doesn't have that cost — your file is read, edited, and rebuilt entirely inside your own browser's memory. There's no server-side job to throttle, so there's nothing to limit.
When you drop a file into any tool on this site, it's loaded straight into your browser's RAM using open-source libraries like pdf-lib and PDF.js. The merge, split, or conversion happens on your CPU, not ours. Nothing is transmitted anywhere — you can disconnect your Wi-Fi after the page loads and every tool will keep working. This also means the tools run at the same speed whether you're on fibre broadband or a slow mobile connection, since there's no upload to wait on.
These tools exist for specific jobs: combining scanned receipts into one expense report, merging bank statements before sending them to an accountant, splitting a textbook into chapters, or stripping a password off a file you already own. Pick the tool that matches your task from the list below — each one opens straight into the workspace, no account screen in between.
Everything you need to know about our secure, browser-based PDF tools.
Yes, absolutely. All of our PDF tools are 100% free to use. There are no hidden fees, no subscriptions, and no premium features locked behind a paywall.
No. Our platform uses modern WebAssembly (Wasm) technology to process your files directly inside your own web browser. Your sensitive documents never leave your device, ensuring total privacy.
Yes. Because the processing happens 100% offline within your client-side browser, no one else (not even us) can see, access, or store your files. It is the safest way to edit highly confidential documents.
No installation is required. Everything runs natively within your modern web browser (like Chrome, Firefox, Safari, or Edge) without the need for any third-party plugins or desktop software.
No. Operations like merging, splitting, rotating, or extracting pages preserve the original high quality of your document. The only time quality is reduced is if you intentionally use our Compress PDF tool to shrink the file size.
Yes, our platform is fully responsive. You can easily merge, compress, or edit PDF files directly from your smartphone or tablet's mobile browser with the same level of security.
Because the processing happens on your local device, the only limit is your own device's available RAM and processing power. We do not enforce any artificial server-side upload limits.
Local processing guarantees absolute privacy. Furthermore, it works much faster since you don't have to wait for large files to upload to a remote server and then download back to your computer.
Yes, tools like Merge PDF allow you to select, drag-and-drop, and visually arrange multiple PDF files at the same time before combining them into a single document.
Absolutely not. Since we never receive your files on our servers, there is nothing for us to store. Once you close your browser tab, all temporary data in your browser's memory is completely wiped by your operating system.
Yes. Since no file is ever uploaded, tool performance depends only on your device, not your connection speed. Once the page has loaded, most tools keep working even on a weak 2G/3G signal or after you've gone fully offline.