PdfViewer vs Camera

PdfViewer

Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions. The PDF stream is fed into the sandboxed WebView without giving it access to content or files. CSP is used to enforce that the JavaScript and styling properties within the WebView are entirely static. (by GrapheneOS)

Source Code

grapheneos.org

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Camera

Modern camera app focused on privacy and security with QR & barcode scanning. (by GrapheneOS)

Grapheneos Privacy Security Android Camera

Source Code

grapheneos.org

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PdfViewer		Camera
	Project
44	Mentions	163
502	Stars	767
6.2%	Growth	3.5%
8.6	Activity	8.5
7 days ago	Latest Commit	3 days ago
Java	Language	Java
MIT License	License	MIT License

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

PdfViewer

Posts with mentions or reviews of PdfViewer. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-31.

Making a PDF that's larger than Germany
2 projects | news.ycombinator.com | 31 Jan 2024

There are some pdf readers that protect you against those things.
On Android, for example, there is the GrapheneOS Pdf Viewer [1]. It's readme has a pretty good explanation of how it works.
1: https://github.com/GrapheneOS/PdfViewer
SumatraPDF Reader
11 projects | news.ycombinator.com | 23 Oct 2023
Secure PDF Viewer app version 17 released
1 project | /r/CopperheadOS | 3 Jul 2023

1 project | /r/GrapheneOS | 3 Jul 2023
Does muPDF still have vulnerabilities?
3 projects | /r/fossdroid | 28 Jun 2023
PDF Viewer plus security vulnerability
1 project | /r/fdroid | 23 Mar 2023
[Opinion] My favorite complimentary apps for custom Android ROMs.
6 projects | /r/PrivacyGuides | 15 Dec 2022

Secure PDF Viewer. FOSS. The Simple Rick of PDF viewers. Reads PDFs and doesn't spy on you. At the time of this writing, printing PDFs with this app is a bit awkward. You have to use the "Share" button and then scroll down to the printer icon or "send to printer" icon to print the PDFs. MJ PDF Reader also belongs in this slot. FOSS. Printing PDFs is simpler and easier with this app.
Secure PDF Viewer app version 16 released
2 projects | /r/PrivacyGuides | 5 Dec 2022

1 project | /r/CopperheadOS | 5 Dec 2022

1 project | /r/GrapheneOS | 5 Dec 2022

Camera

Posts with mentions or reviews of Camera. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-03-29.

GrapheneOS Camera app version 64 released
1 project | /r/GrapheneOS | 14 Nov 2023
GrapheneOS Camera app version 63 released
1 project | /r/CopperheadOS | 5 Jun 2023

1 project | /r/GrapheneOS | 5 Jun 2023
GrapheneOS Camera app version 62 released
1 project | /r/CopperheadOS | 19 Apr 2023

1 project | /r/GrapheneOS | 19 Apr 2023
All my Open Source App Alternatives
6 projects | /r/fossdroid | 29 Mar 2023

Camera → GrapheneOS Camera (it's very hard to achieve good quality with open source alternatives)
GrapheneOS Camera app version 61 released
1 project | /r/CopperheadOS | 26 Mar 2023

1 project | /r/GrapheneOS | 26 Mar 2023
GrapheneOS Camera app version 60 released
1 project | /r/CopperheadOS | 7 Mar 2023

2 projects | /r/GrapheneOS | 7 Mar 2023

GrapheneOS Camera app version 60 released: https://github.com/GrapheneOS/Camera/releases/tag/60.

What are some alternatives?

When comparing PdfViewer and Camera you can also consider the following projects:

Apps

open-source-ios-apps - :iphone: Collaborative List of Open-Source iOS Apps

Music-Player-GO - 🎶🎼 Very slim music player 👨‍🎤 100% made in Italy 🍕🌳🌞🍝🌄

FreeDcam - FreeDcam is a CameraApp for Android >4.0(ics) wich try to enable stuff that is forgotten by the manufacturs

Auditor - Hardware-based attestation / intrusion detection app for Android devices. It provides both local verification with another Android device via QR codes and optional scheduled server-based verification with support for alert emails. It uses hardware-backed keys and attestation support as the foundation and chains trust to the app for software checks.

OpenCamera - Hate, hate, hate, for Google and its crashtastic Pixel 6 Pro.

document-viewer - Document Viewer is a highly customizable document viewer for Android.

dicio-android - Dicio assistant app for Android

platform_external_Camera - Camera app prebuilt using the latest official release of the Camera app.

Pix (WhatsApp Style Image Picker) - Pix is a Whatsapp image picker replica. with this, you can integrate an image picker just like WhatsApp.

simple-keyboard

LiveEdgeDetection - LiveEdgeDetection is an Android document detection library built on top of OpenCV. It scans documents from camera live mode and allows you to adjust crop using the detected 4 edges and performs perspective transformation of the cropped image. It works best with a dark background.