Perfect Viewer

Review by eFreeware

If you keep comics as files rather than buying them inside a store app, Perfect Viewer is the sort of reader you end up looking for. It is a free Android app from developer Rookie001 that opens image folders and comic archives, and it has been doing that job since 2010. With more than five million installs and a 4.4 average from 57,600 ratings, it has clearly found an audience among people who want their own files displayed well.

What that audience gets is a viewer built around formats rather than a storefront. The app reads JPEG, PNG, GIF, BMP, WebP and TIFF images, and it opens CBZ, CBR, 7Z, LZH and TAR archives directly, so a downloaded comic does not need to be unpacked first. It also handles EPUB, HTML and TXT files, which makes it a plausible single reader for a mixed folder of comics and text-based ebooks.

What matters more for a reader is whether the page looks right on your screen and whether moving through a long series is comfortable. On both counts the app gives you a lot of choices, and the rest of this review is about which of those choices matter.

Reading modes that adapt to the page in front of you

Perfect Viewer offers three viewing modes: page mode, a vertical scroll that suits webtoon-style strips and PDFs, and a horizontal scroll. Page mode can be set to automatic single or dual pages, and the app can switch between them based on screen orientation. That is the kind of detail that matters when you read on a phone in portrait and a tablet in landscape, because a spread that looks cramped on one screen can look natural on the other.

Reading direction is handled too, with support for both left-to-right and right-to-left page order. Anyone who reads translated manga will recognize why that option is not a nicety but a requirement, and having it alongside the layout controls means the app can be tuned to the material rather than the other way around.

Navigation uses pinch to zoom and a fling gesture, and there is a balloon magnifier for enlarging a small area of a page without losing your place. The app caches the next and previous pages, which is the sort of background work that keeps page turns from feeling like a wait.

Image controls for scans that need help

Scanned comics vary enormously in quality, and the app includes several tools aimed at that reality. Smoothing filters include averaging, bilinear, bicubic and Lanczos3, and there are five ways to fit an image to the screen: full size, fit screen, fit width, fit height, fixed size and stretch. Between those two sets of options you can decide how much sharpening or softening you want and how much of the page should fill the display.

Brightness, contrast and gamma can be adjusted, and the app can automatically cut off a white border, which is useful for scans that carry a wide margin. A colorize option turns black-and-white images into four-color pages, but it is limited to users of the separate donation app.

Smaller conveniences round out the reading experience: a bookshelf view, simple bookmarks, favorites management, thumbnail browsing inside folders and archives, a slideshow, and the ability to set an image as wallpaper. The app can also extract files from an archive and perform basic file management such as deleting and renaming, so you can do some housekeeping without leaving it.

Files from a server, a cloud drive or a memory card

The app is not limited to files stored on the device. It can open material over network file sharing through CIFS/SAMBA, as well as FTP, SFTP, FTPS and OPDS, which means a comic collection kept on a home server or a catalog offered by a feed can be reached directly. This is the feature that separates a reader like this from simpler gallery apps, and it is the reason the app asks for internet permission for CIFS/SAMBA access.

Cloud storage is handled through a separate source plugin, after which files can be opened from Google Drive, Dropbox and OneDrive. Google Drive support comes with its own permission requirements, specifically GET_ACCOUNTS and USE_CREDENTIALS. Similarly, PDF, XPS and DJVU files are readable only after installing the PDF plugin, so those formats are an extension rather than part of the base install.

Google Chromecast is supported as well, which opens the possibility of putting a page on a television. For a reader with a large library spread across a local drive, a server and a cloud account, this combination of sources is likely to be the most persuasive part of the package.

What the app asks of you before it does its best work

Most of the trade-offs here come from the plugin arrangement. PDF, XPS and DJVU need the PDF plugin; cloud files need the source plugin; the colorize feature is reserved for people who install the separate donation app. None of that is unusual for a free reader, but it does mean the out-of-the-box experience covers images, archives and ebooks, and the rest is added on.

Network access has its own requirements. CIFS/SAMBA needs internet permission, and Google Drive needs account permissions, which is the price of reading from those locations rather than from local storage. The app is free, carries no ads and offers no in-app purchases, so there is no subscription standing between you and your files.

The other consideration is simply the breadth of the settings. Three viewer modes, five fit modes, four filters, orientation-based layout switching and manual image adjustments add up to a lot of options, and getting a particular series to look the way you want may take some experimenting. That is a reasonable trade for control, but it is a different experience from a reader that decides everything for you.

The most recent update, version 5.0.4.5 in March 2026, addressed back button behavior on Android 15 and newer devices, which suggests the app is still being maintained for current Android versions.

A reader for people who already own their comics

The focus here is clear enough. Perfect Viewer is built for readers who keep comics, manga and image collections as files and want a viewer that opens them without conversion. The archive support, the left-to-right and right-to-left reading, the scan cleanup tools and the network sources all point at that same user.

It also suits anyone whose library is spread across a phone, a server and a cloud account, since the app can pull from all three once the relevant plugin is in place. Readers who want a storefront with purchases, recommendations and social features are looking at a different category of app; this one is about displaying files you already have.

The ebook formats give it a secondary role for text, and the slideshow and wallpaper options extend it slightly beyond reading. But the center of gravity remains comics and image archives, and that is where its strengths are concentrated.

A dependable choice for a file-based comic library

Perfect Viewer earns its following by covering the formats comic readers actually use and by giving them enough control to make imperfect scans readable. The combination of archive support, dual-page layouts, reading direction options, filters and network sources is hard to match in a free app, and the absence of ads and purchases keeps the experience focused on the files.

The caveats are worth weighing before you install it. PDF, XPS and DJVU depend on a plugin, cloud access depends on a source plugin, and the colorize feature belongs to the separate donation app, so the full range of formats is not available from the base download. The number of settings also means some time spent finding the layout and filter that suit your material.

If you have a folder of CBZ or CBR files and want a reader that will open them, respect manga page order and let you tune the image, this is an easy recommendation. If your comics live inside a store app and you have no interest in managing files, the app's strengths will not come into play.

What's new in version 5.0.4.5

2026/03/12 Version 5.0.4.5 -Fixed : Back button behavior issue on Android 15+ devices.