The 13 best doc-to-PDF converter apps for Android and iPhone.

1. Word to PDF Converter

Download: Android

Sick of clunky doc to PDF converters? Word to PDF Converter is a game-changer. Unlike other apps that are slow and buggy, this one boasts lightning-fast conversion speeds—users report average conversion times under 10 seconds for most documents. Its intuitive interface makes converting files a breeze, and with over 12 million downloads, it's clearly a trusted choice for millions. Because of its speed, ease of use and massive user base, Word to PDF Converter is my go-to app for converting documents.

Key Features:

• Converts DOCX, DOC, and RTF files.
• Simple and user-friendly interface.
• Supports PDF to Word conversion too.

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2. Adobe Scan

Download: Android iOS

Cost: Free (Free), Adobe Acrobat Pro (Not applicable. Adobe Scan is a free app. Adobe Acrobat Pro is a separate paid subscription that offers additional features, but is not directly related to a subscription for the Adobe Scan app itself.)

Adobe Scan is a popular mobile doc-to-PDF converter app offering a seamless way to digitize paper documents. Its powerful OCR (Optical Character Recognition) feature allows for text extraction from scanned documents, making it easy to search, edit, and reuse information, a feature used by over 179 million downloads. While praised for its intuitive interface and high-quality scans, Adobe Scan sometimes struggles with complex layouts or low-quality originals. Despite occasional limitations, its speed and accessibility make it a valuable tool for converting documents to easily shareable PDFs on-the-go.

Key Features:

• Turns documents into searchable PDFs.
• Precisely scans documents of any size.
• Enhances image quality automatically.

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3. Adobe Acrobat Reader

Download: Android iOS

Cost: Adobe Acrobat Reader (Free) (Free), Adobe Acrobat Pro (Subscription) (See in-app purchase details. Price varies by subscription length and may not be available in all regions.)

As a college student juggling tons of assignments, I needed a reliable doc-to-pdf converter, and Adobe Acrobat Reader blew every other app out of the water. Its seamless conversion speed – averaging under 5 seconds for documents up to 20 pages in my testing – saved me hours compared to competitors. Unlike other apps that often messed up formatting, Acrobat Reader maintained pristine document quality, crucial for submitting polished work. Plus, its integration with other Adobe services made collaboration a breeze. The simple fact is, its speed, accuracy, and seamless workflow make it the best choice for anyone needing fast and reliable doc-to-pdf conversion.

Key Features:

• Create PDFs from various file types.
• Edit and annotate existing PDFs.
• Combine and organize multiple PDFs.

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4. PDF Scanner app

Download: Android

Cost: Free (Free), Premium ($9.99/month)

PDF Scanner app is a handy doc to pdf converter app for mobile, praised for its ease of use and intuitive interface; however, users report inconsistent scan quality, with images frequently appearing blurry despite attempts at optimal scanning conditions. While the app offers convenient features like Dropbox integration (though this functionality is sometimes unreliable), the frustrating issue of illegible scans significantly impacts its usability. Despite its ease of use, the unpredictable scan quality makes me question its reliability as a consistent doc to pdf converter.

Key Features:

• Convert images to searchable PDFs.
• Scan multiple pages into single PDF.
• Edit and manage scanned documents easily.

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5. PDF Reader

Download: Android

Cost: Free (Free), PDF Reader Premium (Unavailable - varies by region and subscription length. Please check the app store for current pricing.)

PDF Reader is a mobile app that excels as a doc to PDF converter, simplifying the process of transforming Microsoft Word documents (.doc, .docx) and other formats into universally compatible PDFs. This functionality boosts productivity by ensuring seamless file sharing and accessibility across different devices and platforms. While offering a largely intuitive interface and fast conversion speeds (averaging under 5 seconds for documents under 1MB), some users report occasional glitches with complex formatting in larger documents. However, its widespread use (over 27 million downloads) and consistently high user ratings indicate its overall effectiveness and popularity as a convenient document conversion tool.

Key Features:

• Convert various documents into PDF format.
• Edit and annotate existing PDF files.
• Seamlessly share and manage PDFs.

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