How to apply Convert.toPdf() on image selected from image gallery?

Technical Support
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1

Product: PDFTron SDK

Product Version:

How to apply Convert.toPdf() on image selected from image gallery?

Hello

In my application I am trying to combine multiple images into single PDF. All the images were selected from device image gallery. Below are the things I have tried so far.

  1. I used doc.pageCreate() and Image.create(doc.sdfDoc, bitmap) to create a new page for each image. But the issue here is the selected images can be of different resoulutions. I want to maintain same page size accorss all the pages and image should be adjusted based on its resoulution.
    Issue: Here I couldn’t create propery page size and placement of image due to different image sizes

  2. Later I found using Convert.toPdf() we can combine multiple images into a pdf without having to worry about resoultions. But I couldn’t apply this function on to gallery image as the choosen path would start with content, ex: content://xxxxx/image:3993. In the examples always Assessts folder images were used.

When I tried this, I got below exception:
Convert.toPdf(doc, File(uri.path).absolutePath)

Saved tmp path null

Please let me know how can I achive this. My requirement is choosing multiple images from gallery and generate a pdf with good quality of images, good aspect ratio and minimal file size.

2

Hi,

Could you try the following to get the image URI and convert it?

SecondaryFileFilter documentConversionFilter = new SecondaryFileFilter(getContext(), fileUri);
documentConversion = Convert.universalConversion(documentConversionFilter, options);
documentConversion.convert();

Please see here for more details: DocumentConversion

Best Regards,
Eamon

3

Hi Emallon

Thanks for your help. But Conversion seems to be a separate add-on. For our license, the add-on is not included in the package. Could you provide me any alternate solution to this?

Regards
Ravi

4

Hi Ravi,

It is possible if you open an InputStream to get the image from the content URI and then copy it to a file.

        InputStream input =  getContentResolver().openInputStream(contentUri);
        OutputStream output = new FileOutputStream(targetFile);
        IOUtils.copy(input, output);

Once you have done this you can then convert the targetFile using Convert.toPDF().

Please let us know if this works for you.

Best Regards,
Eamon