Audience
Users interested in a free online PDF converter and compressor
About Lua
Lua is a free online PDF converter. No download required! Convert PDF to Word DOC, Excel, JPG, PNG, PPT and HTML files, or convert to PDF on the cloud.
Follow these steps to combine/merge PDF online:
1. Click Choose PDF Files and select the PDF files you want to merge.
2. PDF Combiner will start the merger job immediately.
3. Wait for the tool to finish the task.
4. Your PDF files will be merged into a single document.
Other Popular Alternatives & Related Software
Adobe PDF Library SDK
Adobe PDF Library is the only commercial PDF SDK built on Adobe Acrobat's own core engine, delivering the same rendering accuracy, PDF spec coverage, and behavior as Acrobat itself.
Available in Modern C++, Adobe C/C++, .NET, .NET Framework, and Java, and supported on Windows, macOS, and Linux. Create, edit, merge, split, annotate, and watermark PDFs programmatically; convert to and from Word, Excel, PowerPoint, PDF/A, PDF/X, and more; add OCR, digital signatures, redaction, and encryption; and process AcroForms and XFA forms.
SOC 2 Type 2 compliant, with a 91% customer retention rate among enterprise users.
For enterprise deployment, the pdfRest API Toolkit Container packages this technology as a self hosted REST API for on premises, private cloud, or hybrid environments.
Datalogics also offers Scout, an AI assistant, and an MCP server so teams can bring PDF capabilities into AI powered workflows.
Learn more
SwifDoo PDF
SwifDoo PDF is a comprehensive, all-in-one PDF tool that offers features that most users often require. This free software comes with a user-friendly interface where most of its main features layout and can be easily recognized and accessed on the main screen of the program.
SwifDoo PDF - the most functional PDF editor that can be successfully used by novice users and experienced professionals. Beginners will enjoy the simplicity and certain intuitiveness of the interface, as well as the ability to edit PDF files without much effort.
SwifDoo PDF has a number of special features for scanning copy convert. Besides many convert features.
PDF Reader
PDF Annotation (Including Stamp)
Picture/image Extraction (only need copy and paste from PDF)
PDF Edit
PDF Compress
PDF Merge
PDF Split
PDF Signature
System Requirements:
Windows 10/7/8/vista/XP
Edition: SwifDoo PDF 2.0.0.6
Learn more
ShinePDF
ShinePDF was built with you in mind. Say goodbye to complicated software & hello to easy-to-use PDF tools. Autofill, merge, split, convert, compress, secure your documents in just a few clicks.
1) Convert PDF documents to Excel, Word, HTML, Text and Image.
2) Easily convert Excel, MS Word, PowerPoint, Html, Text and Image files into PDF documents.
3) Split documents. Remove, extract or organize PDF pages as you need.
4) Merge and Encrypt PDF files with a password to prevent unauthorized access to the file content.
5) Automatically fill PDF forms from Excel.
6) Reduce the size of your normal and scanned PDF while maintaining its original quality and formatting.
Learn more
SODA PDF
Soda PDF is the software solution that helps your business quickly achieve any document goal with ease. Edit, create, convert, merge, split, sign, or secure PDFs to your needs. Modify documents using the best PDF editor and PDF converter. Our easy-to-use PDF tools are made to streamline any document workflow with efficient results. With the fastest Microsoft Office to PDF converter on the market, our Batch tool helps you create or convert multiple PDFs at once, along with the ability to add page numbers, watermarks, Bates numbering & secure permissions to multiple files or folders in seconds. Keep a safe distance between people and paper by signing, managing & tracking electronic signatures remotely using our efficient E-Sign feature. Save time & avoid retyping with OCR Edit to quickly search, recognize & modify text contained within any scanned document or image file. Access Soda PDF’s entire suite of tools & services directly from your desktop, or from any device with a web browser.
Learn more
Pricing
Starting Price:
Free
Free Version:
Free Version available.
Integrations
Company Information
Lua PDF
United States
getlua.com
Other Useful Business Software
$300 Free Credits to Build on Google Cloud
Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
Product Details
Platforms Supported
Cloud
On-Premises
Training
Documentation
Support
Phone Support
Online