APK is markedly larger

[snelltheta]

Was this the result of the font pack being included? Storage isn't cheap.

[tuxor1337]

No, the font pack has not been included into the main package.

The increase in size is due to the new MuPdf build process. If you inspect the apk, the *.so libraries alone account for the biggest part of the package. The MuPdf build process has been copied from the MuPdf for Android app, hence the *.so files in their APKs are just as big. But they split the APK according to the supported architectures, so that they don't have four different *.so in one APK (for armeabi, armeabi-v7a, mips, x86).

I confirm your bug report, since an increase from 9.7 MB (v2.5) up to 23.7 MB (v2.7) is surely remarkable. But I actually don't know how to cope with it. Of course, the easiest solution seems to be having separate packages for the different arches (like we temporarily had with v2.6). But I don't know how to do this.

Probably also this might help: https://blog.algolia.com/android-ndk-how-to-reduce-libs-size/

[KrasnayaPloshchad]

Well, when I access the MuPDF website, I got source tarball from their download link, then I found several large font files inside. I think these files may cause the problem, maybe some of them can be split from their source code and move to DV Font Pack.

[tuxor1337]

No, the APK does not contain any part of the MuPdf source tarball - especially no fonts or other resources. Instead, the increase is entirely due to a larger *.so file. You can simply check this yourself by comparing the file size of v2.6 (6.7 MB, containing only armeabi-v7a) and v2.6.1 (22.7 MB, containing armeabi, armeabi-v7a, mips, x86, but same code base apart from that).

[consp1racy]

Had the very same issue. Fortunately splitting .apk is fairly easy lately. Se here:
http://stackoverflow.com/questions/28940743/ndk-support-in-androidstudio-and-choosing-between-android-studio-and-eclipse/28943840#28943840

EDIT: You wrote you already build the .sos yourself. Try adding

LOCAL_CFLAGS += -DNOCJK

in Core.mk to exclude fonts from the .so (that's right). Just went from 9266 kB to 2155 kB for armeabi-v7a unpacked (may be even less when you put it to .apk).

[tuxor1337]

@consp1racy Thank you very much!

The NOCJK flag bring's the size of our shared objects down to roughly the size it used to have at the time of v2.5. I will release this and wait for complaints from Asian users ;-)

It seems to me like it's more elegant switching to splitted .apk files once we upgrade compileSdkVersion to at least 21 (cf. #92).

[consp1racy]

No problem at all!

You can always make another flavor specifically for Asian market, which will have native libraries with CJK fonts. Where are the days of a single .apk ... :D

[lawrence615]

Hello everyone, Sorry for asking this question even after the thread has been dormant for some time. I am also facing the problem of size with the lib and even after adding LOCAL_CFLAGS += -DNOCJK it is still quite big. May be am adding that line at the wrong point of Core.mk...I just wanted to ask where in Core.mk should I add that line and at what point of building mupdf from source.

[ericwa]

@lawrence615 hey, here's the Core.mk for document-viewer: https://github.com/SufficientlySecure/document-viewer/blob/master/document-viewer/jni/mupdf/Core.mk

Also keep in mind that even with no CJK fonts, there are still about 800KB of fonts that need to be embedded in mupdf (the PDF core fonts).