Best pdf.io Alternatives (27)

Looking for a pdf.io alternative? We've compiled the best options based on user reviews, features, and pricing to help you find the right fit.

What is pdf.io? pdf.io is a PDF editor that allows you to view, edit, sign, and comment on PDF documents online. Its key features include annotation tools, form filling, e-signatures, and collaboration features.

Top Alternatives to pdf.io

SumatraPDF

SumatraPDF

Open Source

SumatraPDF is a free and open-source PDF, eBook, XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. It …

Qoppa PDF Studio

Qoppa PDF Studio

Subscription

Qoppa PDF Studio is a PDF editing and creation software for Windows. It allows editing PDFs, converting documents to PDF, …

Okular

Okular

Free

Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular …

MuPDF

MuPDF

Open Source

MuPDF is a free, open source PDF viewer and toolkit. It is lightweight, fast, and cross-platform, supporting Windows, macOS, Linux, …

Firefox PDF Viewer (PDF.js) is an open source PDF viewer that is built into Firefox. It allows you to view …

Xodo is a free PDF reader and annotator for Windows, Linux, Android, iOS and web browsers. It allows you to …

MJ PDF Reader

MJ PDF Reader

Open Source

MJ PDF Reader is a free, lightweight PDF viewer for Windows. It allows you to view, print, and annotate PDF …

OpenViewerFX

OpenViewerFX

Open Source

OpenViewerFX is a free, open-source image viewer, converter and editor for Windows. It supports a wide range of image formats …

Adobe Acrobat Reader is a free software application for viewing, printing, signing, and annotating PDF documents. It is the standard …

Docs PDF/PowerPoint Viewer is a free program that allows you to view, print and annotate PDFs and PowerPoint presentations. It …

Preview

Preview

Open Source

Preview is a free and open-source document viewer application for macOS. It allows quick viewing of multiple file formats including …

Evince

Evince

Free

Evince is a document viewer for multiple document formats. It is simple, fast and designed to integrate well with the …

PDF Colorizer is a software that allows users to easily add color to PDF documents. It has tools to colorize …

Foxit Reader

Foxit Reader

Freemium

Foxit Reader is a free PDF reader that provides fast PDF viewing, editing, organizing and security features. It is a …

PDFgear is a PDF software suite that includes tools for creating, editing, converting, annotating, securing, and optimizing PDF documents. It …

More Similar Software

pdf.io Overview

pdf.io is an online PDF editor that provides a suite of tools for working with PDF documents without requiring any downloads or installations. Some key features of pdf.io include:Viewing, editing, and commenting on PDFs directly in the browserAnnotation tools like highlights, text boxes, shapes, freehand drawingForm filling and e-signatures to collect data and signatures digitallyCollaboration features to share and discuss PDFs with team membersConverting between PDFs and other document formats like Word, Excel, PowerPointBasic editing like inserting, deleting, or rotating …

Quick Comparison

SoftwarePricingScore
pdf.ioN/A
SumatraPDFOpen Source
Qoppa PDF StudioSubscription
OkularFree
MuPDFOpen Source
Firefox PDF Viewer (PDF.js)Open Source
XodoN/A
MJ PDF ReaderOpen Source
OpenViewerFXOpen Source
Adobe Acrobat ReaderFree
Docs PDF/PowerPoint ViewerFree

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