raghuwanshi/mobile-pdfium

PDFium - Compile instructions and tools for mobile iOS and Android

Mobile PDFium

This project compile PDFium to mobile platforms. Current project compiles to:

• iOS
• Android

Requirements

1. ninja (brew install ninja)
2. python3
3. pip (generally called pip3 for python3)

How to compile

1. Get the source:
   git clone github.com/prsolucoes/mobile-pdfium.git

2. Install pip requirements:
   pip3 install -r requirements.txt or
   pip3 install -r requirements.txt --user

3. Get Google Depot Tools:
   python3 make.py run build-depot-tools

4. Get Chromium:
   python3 make.py run build-chromium

5. Get PDFium:
   python3 make.py run build-pdfium

6. Apply patchs:
   Check **patchs** section of this file

7. Compile for iOS:
   python3 make.py run build-ios

8. Install iOS libraries:
   python3 make.py run install-ios

Obs:

• The file make.py need be executed with python3.
• The steps 1, 2, 3, 4, 5 and 6 you only need make one time.

Patchs

1. Remove assert lines from libjpeg_turbo build files about iOS check:

• pdfium/build/secondary/third_party/libjpeg_turbo/BUILD.gn
• chromium/build/secondary/third_party/libjpeg_turbo/BUILD.gn
• chromium/third_party/BUILD.gn

2. Replace line 62 from pdfium/core/fxcrt/fx_system.h:

• FROM #include <Carbon/Carbon.h>
• TO #include <CoreGraphics/CoreGraphics.h>

3. Add to file pdfium/BUILD.gn on line 243, the code:

if (is_ios) {
  libs += [
    "CoreGraphics.framework"
  ]
}

3. Add to file pdfium/BUILD.gn on line 1132, the code:

if (is_ios) {
  sources += [ "core/fxge/apple/fx_apple_platform.cpp" ]
}

4. Add to file pdfium/BUILD.gn on line 1158, the code:

if (is_ios) {
  sources += [
    "core/fxge/apple/apple_int.h",
    "core/fxge/apple/fx_mac_imp.cpp",
    "core/fxge/apple/fx_quartz_device.cpp",
  ]
}

5. Replace line 18 from pdfium/core/fxge/apple/apple_int.h:

• FROM #include <Carbon/Carbon.h>
• TO #include <CoreGraphics/CoreGraphics.h>

6. Disable neon file for ARM (armv7) of libjpeg_turbo if you have problems like me. Delete line 119 of file pdfium/build/secondary/third_party/libjpeg_turbo/BUILD.gn:

"simd/jsimd_arm_neon.S",

Obs: If anyone know how to make the patch from command line, please, help with this.