Greetings, some documents (especially scanned documents) may not be fully contrasted, ranging as images from light grey to darker grey instead of white to black. It would be nice to have a contrast enhancer, to render the pages flattening colours towards the extremities of black and white. Example curves:

This is especially useful on EPD displays, where you really have "light grey to dark grey" in reality - some contrast is lost because of the current hard limits of the technology...

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':app:processAlphaDebugGoogleServices'.

File google-services.json is missing. The Google Services Plugin cannot function without it.

please help me.

My library consists of about 10k titles but somehow Librera repeats the same author, title and cover over and over and over. Tried on Beta 8.1.157 (play store) and on the PRO version (fdroid) on Android 5.1.1.

If I can give more info, logs or screenshots, let me know.

I'm on Android 12. TTS works perfectly on my older Android 6 device.

Version: 8.5.45-fdroid

Details: in the 'TTS Settings' tab, 'Voice' only shows the trashy TTS engine bundled with my system, even though I have already installed Google TTS and made it default. So I disabled the system TTS package with adb. But now 'Voice' only displays --- ---. When I tap the 'play' icon, I am asked to install the Google Speech Service app, which I've installed.

Dear Ivan, I use and love your product since the dawn of Android, and I have been always recommending it as the foremost. I am currently using an Onyx Boox Max Carta, 13.3'' ElectroPhoretic display Android 4.0.4 - it is roughly an A4, but 4:3 instead of √2:1. Devices are starting to appear that have a screen real estate that make you wish to view PDF documents in landscape mode, horizontal scrolling. (I believe that at some point in time you implemented something similar, a "magazine mode"?) You start with page 1 on the left and you scroll towards the right up to the last page. I downloaded the Lirbi GIT repository to see if I can implement the feature. But of course it is more sensible if I first of all propose it as a feature request. Please let me know what you think; if I manage to obtain good code I will submit it.

Hi. Thanks so much for creating this application. I have purchased the Librera pro as it is easily the best ebook reader I have found on Android (and I have tried many others such as moonreader etc.).

I however am encountering an issue regarding certain equations (formatted as svg images in epub ebooks I am reading) being displayed incorrectly. I have attached the book in question I am having issues with, and also include the following screenshot highlighting the images which aren't being rendered correctly:

In the screenshot there are three images, which should contain three different equations. Below is how the equations should be displayed (using calibre on my computer):

I think this is actually an issue with the way svgs are being displayed by librera as I have found the corresponding svg image files for the equations in the pub archive file.

Link to the epub (I could not attach it to this issue as github doesn't allow for epubs to be uploaded for some reason): https://mega.nz/file/89ZXlQBY#KYRdxjDDDYfwPIv1yG0gbm7TwD5Bhwmp_tlywf3bphE

If you would like to find the part of the ebook containing these which I am referencing, you can search for the following text: "Derivatives are not always linear, convex, or concave across all" which occurs just before the above equations.

It would be so awesome if you could fix this issue as I have so many books I'd love to read using librera which contain such equations, and which I currently can not. Most equations in most books I read are displayed in a similarly problematic manner to the above. Would mean a lot.

Thanks for looking into this :)

Distbit

Could you please exclude junrar from fdroid flavor? It's not licensed under an FOSS license. See https://fedoraproject.org/wiki/Licensing:Unrar. Thanks!

When using text to speech feature, there are multiple issues:

1. It does not start from the current displayed page/text/paragraph (except obviously when starting from the beginning of the book)
2. While speaking, it repeats entire page of text (narration doesn't make any sense anymore, it can repeat something that's 10 page earlier, then some part that are "in the future")
3. There is no feedback about where it is. Ideally, it should overlay, invert, put a dot, or some visual clues about what's being pronounced. This way, it's easy to figure out when it's "restarting" from, instead of trying to outpace while reading the text.

I've tried to use both advanced mode and simple mode with the same result. I'm using the latest beta downloaded today.

NOTE: heavily edited, last edits in the night between Sat 2 and Sun 3 Sep.

Browsing the documents, one can currently use a grid view of the books; it is configured through parameters "Cover image size" and "Column count". The text (title, filename etc.) is placed below the book cover image.

Problem: if the cover size is small, the strings below are too short, but if the cover is large, and the text is long, few documents per screen are visible.

Proposal: to have a more compact grid view, which allows to see more books per screen:

• another "view mode" named something like 'Compact' alongside with 'List', 'Grid' and 'Cover' is added to the relevant pop-up menu;
• if the "compact mode" is on, then "Cover image size" is irrelevant: the book cover image is set to dimensions based on 80dip (80x120 ?);
• "Column count" decides the number of columns;
• The text - the filename only - is placed to the right of the book cover image;
• At least the "starred" and "menu" icons are below the filename.

Below is an example, using "Column count" = 4:

The Manual of the Phonetic Symbol of Mandarin Chinese is published in EPUB, which has customized font size and image size. However Librera does not accept them. It would be nice to have an option to let the document load in its own font size and image size.

This is available here: https://web.archive.org/web/20220622110858/https:/language.moe.gov.tw/001/Upload/files/site_content/M0001/juyin/index.html

I apologize if there is a simple answer to this.

I'm trying to add an OPDS feed. I've seen that Librera implements this in the Network tab. However, no matter what version I install on my phone, the Network tab is not there. It isn't in the list of tabs in the preferences either.

I've installed from F-Droid and Google Play (both regular and Pro) and the apk from the releases here. Nothing.

Is there a setting I'm missing somewhere that enables it?

Thanks for any help.

In the current version of the application, only the following items are available in the context menu of files:

Edit Open with Send file Delete Copy Remove from Library Add tags Add to playlist Reset progress File info

That is, in order to change the file name of a document, you must switch to the file manager, find the file, rename it, return to Librera Reader, and update the library, making sure that the file is displayed with the changed name. It's a very long way.

There's no way Tag list can be sorted alphabetically.

I tried to delete all the tags and tried to insert it in reverse order, but somehow the tags are messed up.

Unable to delete the tags either when I'm importing my old settings. I can see the tags (even though I pressed on cross) but when I try to add tags to the individual books, then I don't see the tags. So much chaos lol.

When headphones are disconnected from the device the tts still continues on the app. Please have it pause when device disconnected to avoid awkward public noise.

Librera background textures are set over the text which is obscuring any displayed reading if the alpha is set to any high level.

Please change the layer order so textures can be correctly applied

In many PDFs with graphical content (scanned docs) I get a blank screen after some pages. Usually about 5-10, seems to depend on the file. Then I have to close the file and reopen it.