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BuBird PDF Studio • 40+ Free PDF Tools

Free Online PDF Tools

MergePDFs online — free, fast and private.

Merge, split, compress, convert, edit, sign and protect PDF files with BuBird PDF Studio. All tools run in your browser, so your files never leave your device. No signup required.

Explore PDF Tools ↓
✓No server uploads✓Files never leave your device✓No signup required✓Browser-based PDF tools✓Free forever✓Works on mobile
🔒No server uploads💻Files never leave your device🔓No signup required⚡Browser-based PDF tools📱Mobile friendly✓Free forever
All PDF Tools

Every PDF Tool You Need

Explore free PDF tools to organize, compress, convert, edit, sign and protect PDF files. No signup, no server uploads, and your files never leave your device.

Merge & Organize
📃
Merge PDF Online
Combine multiple PDF files into one document
Open →
Merge & Organize
✂
Split PDF Online
Split PDF files into separate pages or smaller documents
Open →
Compress & Optimize
📦
Compress PDF Online
Reduce PDF file size for email, forms and uploads
Open →
Compress & Optimize
🎯
Compress PDF to 1MB
Reduce PDF file size to around 1MB for forms, emails and uploads
Open →
Convert from PDF
🖼
PDF to JPG
Convert PDF pages into JPG images
Open →
Convert to PDF
📷
JPG to PDF
Convert JPG images into a PDF document
Open →
Convert from PDF
📄
PDF to Word
Convert PDF files into editable Word documents
Open →
Convert to PDF
📄
Word to PDF
Convert DOC and DOCX files into PDF documents
Open →
Merge & Organize
🗑
Remove PDF Pages
Delete unwanted pages from a PDF
Open →
Merge & Organize
📄
Extract PDF Pages
Extract selected pages into a new PDF
Open →
Merge & Organize
↻
Rotate PDF Pages
Rotate PDF pages to the correct orientation
Open →
Sign & Security
✎
Sign PDF Online
Add an electronic signature to a PDF document
Open →
Sign & Security
🔐
Protect PDF
Add password protection to PDF files
Open →
Sign & Security
🔓
Unlock PDF
Remove PDF password protection when you have permission
Open →
Convert to PDF
🖼
PNG to PDF
Convert PNG images into PDF files
Open →
Convert to PDF
📷
Image to PDF
Convert JPG, PNG and scanned images into PDFs
Open →
Convert from PDF
🖼
PDF to PNG
Convert PDF pages into PNG images
Open →
Convert from PDF
📷
PDF to Image
Export PDF pages as JPG or PNG images
Open →
Convert to PDF
📈
Excel to PDF
Convert XLS and XLSX spreadsheets into PDFs
Open →
Convert from PDF
📈
PDF to Excel
Extract PDF tables into spreadsheet format
Open →
Convert to PDF
📊
PowerPoint to PDF
Convert PPT and PPTX presentations into PDFs
Open →
Convert from PDF
📊
PDF to PowerPoint
Convert PDF files into editable slide presentations
Open →
Convert from PDF
💾
PDF to PDF/A
Convert PDFs into archive-friendly PDF/A format
Open →
Merge & Organize
🔐
Organize PDF Pages
Reorder and rearrange PDF pages visually
Open →
Edit PDF
📌
Watermark PDF
Add text or image watermarks to PDFs
Open →
Edit PDF
🔢
Add Page Numbers to PDF
Add custom page numbers to PDF files
Open →
Edit PDF
✂
Crop PDF Online
Trim PDF margins and crop page areas
Open →
Edit PDF
📄
Add Header and Footer to PDF
Add custom header and footer text to PDF pages
Open →
Compress & Optimize
📍
Flatten PDF
Flatten forms, annotations and edits into a final PDF
Open →
AI & Advanced
🔧
Repair PDF
Try to repair damaged or corrupted PDF files
Open →
AI & Advanced
🔍
AI
OCR PDF
Make scanned PDF text searchable and selectable
Open →
AI & Advanced
📄
PDF Metadata Editor
Edit PDF title, author, subject and metadata
Open →
Simple Process

How It Works

Process any PDF in three simple steps — no software to install, no account needed.

1
Choose a PDF Tool

Browse PDF tools for merging, splitting, compression, conversion, editing, signing and protection.

2
Add Your File

Select your PDF, image or document file. BuBird PDF Studio processes files locally in your browser without server uploads.

3
Review and Download

Preview the output where supported, then download your finished PDF, image or document file.

Why PDF Studio

Built for Everyday PDF Work

BuBird PDF Studio helps students, job seekers, freelancers, creators and teams complete common document tasks quickly without installing software.

🎉
Free to Use

Use PDF tools without signup, subscription or software installation.

🔒
Files Never Leave Your Device

PDF files are processed directly in your browser with no server uploads.

⚡
Fast PDF Workflows

Merge, split, compress, convert and edit PDFs in a simple online workspace.

📊
Complete PDF Toolkit

Organize, convert, edit, sign, protect, OCR, translate and summarize PDFs from one place.

Supported Formats

Convert To and From PDF

PDF Studio supports all major document and image formats for seamless conversion.

Input — Convert These to PDF
JPGPNGDOCXXLSXPPTXHTMLDOCXLSPPT
📄PDF Studio
Output — Export PDF As
JPGPNGDOCXXLSXPPTXPDF/ADOCXLSPPT
Use Cases

Who Uses PDF Studio?

From students to businesses, BuBird PDF Studio helps users finish PDF tasks faster while keeping files on their own device.

🏫
Students

Merge notes, compress assignments, convert images to PDF and prepare files for submission.

💼
Professionals

Edit PDFs, add watermarks, sign documents, protect files and prepare reports.

💻
Developers

Convert HTML to PDF, organize generated reports and optimize document workflows.

🏢
Businesses

Merge invoices, convert office documents, manage forms, compare versions and protect documents.

Privacy First

Your Files Never Leave Your Device

BuBird PDF Studio processes PDF files directly in your browser. Your files are not uploaded to a server for merging, splitting, compressing, converting, editing, signing or protecting. This gives you a faster and more private PDF workflow without signup.

✓No server uploads — files are processed locally in your browser
✓Your PDF files never leave your device
✓No file data is sent, stored or logged anywhere
✓No login means no personal data collected
✓Works offline for browser-based PDF tools
💻
No Server Uploads
Your PDF files are processed locally in your browser
🔒
Files Stay on Your Device
Documents are not sent to a server for processing
🔓
No Signup Required
Use PDF Studio without creating an account
⚡
Browser-Based Tools
Complete PDF tasks using modern browser technology
FAQ

Frequently Asked Questions

Everything you need to know about PDF Studio and how it works.

Yes. BuBird PDF Studio offers free online PDF tools for common tasks like merge, split, compress, convert, edit, sign and protect PDFs. No signup is required.
No. You can use PDF Studio tools without creating an account or logging in.
No. BuBird PDF Studio tools run client-side in your browser. Your PDF files are processed locally and are not uploaded to a server.
No. Your files never leave your device. BuBird PDF Studio processes files directly in your browser.
PDF Studio includes tools to merge, split, compress, convert, edit, sign, protect, unlock, organize, OCR, translate and summarize PDF files.
Yes. BuBird PDF Studio is designed to work in modern mobile and desktop browsers.
PDF Studio supports common formats such as PDF, JPG, PNG, DOC, DOCX, XLS, XLSX, PPT, PPTX and HTML, depending on the selected tool.
PDF compression may reduce file size by optimizing images and document data. Use the recommended compression level when you want a balance between smaller size and readable quality.
Yes. Use the Merge PDF tool to combine multiple PDF files into one document and arrange them in the order you need.
Only unlock PDF files that you own or have permission to modify. Do not use PDF unlocking tools on documents you are not authorized to access.
AI tools such as PDF summarizer or translator can help you understand content faster, but results may not always be perfect. Always review AI-generated output before using it for important work.
Explore More BuBird Tools

Explore the Full Toolkit

PDF Studio is part of the BuBird tools ecosystem — free browser-based tools for images, QR codes, jobs, games and everyday productivity.

🎨
Image Studio
30+ image editing and conversion tools in one place
📦
Image Compressor
Compress JPG, PNG, WebP images online for free
🔁
Image Converter
Convert between 60+ image formats instantly
📸
QR Studio
Generate and customize QR codes in seconds