Javelin version 3 is a special PDF reader for books, articles and similar documents, with or without document authorization. The app supports PDF reading functionality and navigation via the Contents icon, embedded hyperlinks, bookmarks and similar features. Bookmarking, Annotation and highlighting/markup features are supported in the PDF reader.

Documents can be downloaded to the app in one of three principal ways: (i) by using the download icon in the toolbar and entering a full URL; or (ii) by file sharing via iTunes - files may be downloaded or shared that have the file extensions .pdf and .drmz; and (iii) the app supports a third file format, which is an xml structure for lists of documents. This essentially provides a shortcut for the download procedure, as the xml file includes a description of the file and the url of the file to be downloaded, thereby simplifying the download process for the user. These xml lists can themselves be downloaded via an explicit URL download request or may be pre-loaded - a sample catalog is pre-loaded. Suitable files downloaded via Safari may also be opened via Javelin.

Examples of the type of document that would use Javelin include: an electronic copy of a book in PDF format that has previously been purchased in print or other form via the publisher’s website or a traditional bookstore; notes to accompany a training course; intra-corporate technical manuals; and documents provided on a time-limited basis). Javelin does not support in-app purchasing or direct purchasing of digital content through other means. Advanced catalog-handling facilities provide a convenient means for publishers to provide access to their publications.

What’s New

Version 3.00.09

Minor revision to handling of files that have been downloaded via Safari under the latest versions of iOS

Ratings and Reviews

2.3 out of 5
7 Ratings

7 Ratings

alex@ndra_743 ,


I’m new to ebooks... I tried to download a book that I need on Kindle but that was not a success so I downloaded it in this app and its okay. It would be nice if they upgraded. Expand more on note taking options

word-play89 ,

Great alternative app for reading textbooks

Easy to use. Perfect to read text books. Basic features are intuitive to use. Tech support is very responsive to questions.

ched013 ,

Garbage PDF Reader

Wont keep highlights I make on a book and doesn’t keep the page when I exit. Not worth it and a terrible reading experience.

App Privacy

The developer, Drumlin, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


Drumlin Security Ltd
10.4 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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