hamidrezaamz / magicalpdfeditor

This is a small PDF editor based on OpenPdf core and AndroidPdfViewer

MagicalPdfEditor

This is a small PDF editor based on OpenPDF Core and AndroidPdfViewer. As there is not much open source easy working PDF editors and PDF wizards, I decied to create a simple directory to resolve my issues. Here I have worked on two seprate cores, add some functionality into them and combining them together to acheive my target. I am working on this repo, any help will be appreciated.

Features

• All functinality in AndroidPdfViewer (Load, Read, Render, Show, ... PDF Files)
• Add annotations into pdf file
• Add Image into pdf file as OCG item
• Remove annotations from pdf file
• Update annotation in pdf file
• Save changes on same pdf file
• Add observer pattern for better UX (prevent freez)
• Draw line stream over pdf
• Highlight text in pdf
• Remove page from pdf file
• Convert image to pdf with scale and zoom support
• You can add transparent items into PDF pages
• Maybe some other features 😜

Usage

Just clone the project and trance the source code, It's realy easy and clear. Here an example how to use this lib.

Step 1. Add the JitPack repository to your build file, Add it in your root build.gradle at the end of repositories:

allprojects {
        repositories {
            maven { url 'https://jitpack.io' }
        }
    }

Step 2. Add the dependency

dependencies {
    implementation 'com.github.HamidrezaAmz:MagicalPdfEditor:LAST_VERSION'
}

Step 3. Add PDFViewer into your xml

<ir.vasl.magicalpec.view.MagicalPdfViewer
            android:id="@+id/magicalPdfViewer"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#009688" />

For more examples and sample code please check this class from sample app.

Interfaces

Here is the list of interfaces that can help you work with this lib.

Interface	Description
OnPageErrorListener	Triggered when sth went wrong on loading the pdf file
OnLoadCompleteListener	Triggered when loading pdf file finished
OnPageChangeListener	Triggered when page status changed, this will give you page count an new page index
OnLongPressListener	Triggered when user hold his/her finger on part of pdf screen, this will give you MotionEvent object
OnTapListener	Triggered when user on tap on PDF screen, this will give you MotionEvent object
LinkHandler	Triggered when user clicked on added annotation with link, this will give you LinkTapEvent you can extract stored data

Attention

Working with files is restricted in higher android api levels, So if you are working with high level android APIs, be aware of using file provides and needed permissions to work with files, Or you can use SimpleStorage lib to work with files and Android storage.

magicalpdfeditor's Issues

Annotations are not deleted sometimes

Sometimes an annotation is recognised but when trying to delete it, it doesn't get deleted

Annotation image gets black background colour

When I edit an existing annotation, the transparent background of the image turns black

Error when editing Document

Permission Denial: writing com.android.providers.downloads.DownloadStorageProvider uri content://com.android.providers.downloads.documents/document/raw%3A%2Fstorage%2Femulated%2F0%2FDownload%2F130%204t.pdf from pid=5340, uid=10113 requires android.permission.MANAGE_DOCUMENTS, or grantUriPermission()

To avoid this I had To modify the code when opening a PDF like this

  Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        intent.setType("application/pdf");

How to support different document sizes?

After clicking to update an annotation, it is moved. I think this is related to the height and width of the document. What sizes are currently supported and what would you suggest to support different sizes? It would be nice if we can perform the calculations based on the opened document's sizes and not to assume the documents sizes. The different pages may have different sizes also.

Screen.Recording.2023-08-28.at.12.07.18.mov

How to set only one page visible on screen in pdfview?

I want to show only single page of PDF on PDFView on Screen at a time. how to do it?

java.lang.UnsatisfiedLinkError: dlopen failed: library "libpdfsdk_jni.so" not found

It was working fine as it should be but i just updated my gradle plugins and started getting error of libpdfsdk_jni.so

.