about: extensions of mupdf. by 88911562@qq.com
extension functions: 1)add pdf signature with image appearance. 2)add pdf signature with path appearance. 3)insert image to pdf. 4)add hand draw annotation to pdf. 5)annotation can added with password, and check password on deleting annotation. the all above functions could be used on windows, ios, android platform, and for java, c++ language.
samples,look at: mupdf_path/source/z/pdf/samples/pdf_samples.c
x11 is needed by mupdf, to compile mupdf lib, install XQuartz first: https://dl.bintray.com/xquartz/downloads/XQuartz-2.7.11.dmg
digtal signature is depend on openssl, you can compile it by yourself, or get pre-built(for macos) binary and include header files at: https://github.com/zl03jsj/openssl_mac.git
run following command to update submodules: git submodule update --init --recursive
after all above, you may need to take a look at ./compile.sh, make sure all 'include' path is at right place
then, compile samples:
if every thing is ok, you can get executable file: ./pdftest
to test adding annotation, un-comment this code befor run 'compile.sh' // testAddAnnotation(ctx, doc, p, ofile); $./pdftest -p [pageno] -i [./pdffile/test.pdf] -o [./pdffile/out.pdf]
to test add pdf signature, un-comment following code before run 'compile.sh' // doTestPdfSign(ctx, doc, pageno, r, ofile); $./pdftest -p [pageno] -i [./pdffile/test.pdf] -o [./pdffile/out.pdf] -x [x position] -y[y position] -w [width] -h [height]
and the same of insert image into pdf file: // doTestAddImage(ctx, doc);
note: pdf signature samples may needs certificate, there is a test certificate at: mupdf_path/source/z/pdf/samples/user/zl.pfx and it's password is '111111'
you must reset the path of pdf file, signature image, certificate , in pdf_samples.c the source code is like: #define RES_PATH "ResourecePath" #define RES_Image_file RES_PATH"/esp_saved.png" #define RES_Pdf_file RES_PATH"/pdffile/test.pdf" #define RES_Cert_file RES_PATH"/user/zl.pfx"
compile mupdf core library on windows,mac,linux platform: first step: compile your openssl lib, get 2 library: libcrypto.a, libssl.a
second: copy to mupdf_dir_path/thirdparty/openssl/platform/ dir platform is: ios, macos, win, linux
finnally: $cd mupdf_dir_path $make -f Makefile HAVE_LIBCRYPTO=yes HAVE_OPENSSL_SSL=yes build=debug you can use "HAVE_OPENSSL=yes" to replace "HAVE_LIBCRYPTO=yes HAVE_OPENSSL_SSL=yes" if everything is ok, you can get libmupdf.a at mupdf_dir_path/build/release(debug)/
now you can use libmupdf.a to add image/(hand draw) signature, add image, add hand draw annotations....
do not forget: when compile application, you must link openssl library. example: gcc ./test_pdf_signature.c -LPathofOpensslLib -lcrypto -lssl -lmupdf
compile mupdf for android: must install ndk, and compile neeeded architecture openssl lib. then, excute the following command: $cd mupdf_dir_path/platform/android/viewer/ $make -C ../../.. generate $ndk-build you can get dynamic lib for android at: mupdf_dir_path/platform/android/viewer/lib
for ios: you can open the project at(mupdf_dir_path/platform/ios) with xcode directly. select the Mupdf_openssl_sign target to compile. the ios application's directory like this: app_path/Documents +/imagefiles image_files +/pfxfiles certificate_files ..... pdffiles.pdf .....
the test directory is created at: mupdf_path/platform/ios/Documents/ you can use this folder directly.
if you want show your appreciation, you can contribute money to me:^_^!
mupdf official website: www.mupdf.com