Top 6 Open-Source Alternatives to Altarsoft PDF Reader

Product categories

File Sharing Form Builder OCR PDF Creator PDF Editor PDF Readers And Editors PDF Tools eSignature

Summary

The top open-source alternatives to Altarsoft PDF Reader are MuPDF, pdfFiller, and PDFsam. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

MuPDF Landing Page
1

MuPDF

MuPDF is a lightweight PDF and XPS viewer.
Pricing:
- Open Source
#PDF Tools #PDF Readers And Editors #PDF Editor 20 social mentions
pdfFiller Landing Page
2

pdfFiller

A comprehensive online document management platform that provides the services of an online editor, cloud storage platform, and a signature request manager, all in one package.
Pricing:
- Open Source
- Paid
- Free Trial
- $8.0 / Monthly (annual commitment)
#PDF Tools #PDF Editor #eSignature 7 social mentions
PDFsam Landing Page
3

PDFsam

PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files
Pricing:
- Open Source
- Free
#PDF Tools #PDF Creator #PDF Editor 31 social mentions
Qoppa PDF Studio Viewer Landing Page
4

Qoppa PDF Studio Viewer

Free PDF Reader for Windows, Mac, Linux.
Pricing:
- Open Source
- Free
- Free Trial
#PDF Tools #PDF Editor #PDF Creator
NAPS2 Landing Page
5

NAPS2

NAPS2 is a document scanning application with a focus on simplicity and ease of use.
Pricing:
- Open Source
#OCR #PDF Tools #PDF Editor 1 social mentions
Firefox PDF Viewer (PDF.js) Landing Page
6

Firefox PDF Viewer (PDF.js)

PDF Viewer (aka pdf.js) is a new revolutionary extension using web standard technologies that...
Pricing:
- Open Source
#PDF Tools #PDF Readers And Editors #PDF Editor 25 social mentions