pdf-to-png | render a PDF to a PNG with electron | Image Editing library

by freeman-lab JavaScript Version: 1.0.3 License: MIT

X-Ray Key Features Code Snippets Community Discussions(7)Vulnerabilities Install Support

kandi X-RAY | pdf-to-png Summary

pdf-to-png is a JavaScript library typically used in Media, Image Editing, React, Nodejs, Electron, Express.js applications. pdf-to-png has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i pdf-to-png' or download it from GitHub, npm.

render a PDF to a PNG with electron

Support

Quality

Security

License

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Support

pdf-to-png has a low active ecosystem.

It has 38 star(s) with 8 fork(s). There are 1 watchers for this library.

It had no major release in the last 12 months.

There are 7 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of pdf-to-png is 1.0.3

Quality

pdf-to-png has 0 bugs and 0 code smells.

Security

pdf-to-png has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

pdf-to-png code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

pdf-to-png is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

pdf-to-png releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

Installation instructions are not available. Examples and code snippets are available.

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pdf-to-png Key Features

No Key Features are available at this moment for pdf-to-png.

pdf-to-png Examples and Code Snippets

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Community Discussions

Trending Discussions on pdf-to-png

How to convert multilayered PDF to PNG choosing which layers will be exported in .NET

Converting PDF to Image - Swift iOS

Convert pdf to png with animation package

How to generate the Thumbnail of the PDF first page in Xamarin Forms

Convert each page of a multi-paged pdf into separate png files in R

Load a PDF in a ActiveX widget

Removing highlighted areas when converting pdf to image?

QUESTION

How to convert multilayered PDF to PNG choosing which layers will be exported in .NET

Asked 2020-Apr-22 at 18:04

I need to be able to convert a multilayered PDF to PNG but I need to be able to set which layer will be exported.

PDF file contains many layers and most of them are not visible. There are APIs that export only layers that are visible and other all. Some APIs let me change the layer visibility but not all that allow that obey this in the conversion.

I have already tried many .Net APIs and few of them allow me to do it but always with some issue. I have already opened few tickets in the related companies but have no clue if and when they will fixed it.

I keep looking for some API that could do this job done and I would appreciate any help.

Follow the APIs and tools I have already tested:

FreeSpire.PDF: did almost the job but the image is being converted with a large empty transparency area around main image (I could not fix that yet).

Syncfusion.Pdf: This seemed to be a good option as well, I can get Layers, set visibility of them but when I export is being exported all layers (visible and invisible). The image quality is very good as well and there is no empty area around.

Dynamic.PDF: seemed another good one but in fact has few resources and not be able to get and work with layers and exporting just invisible ones.

Apitron PDF Rasterizer: Simple to use but it is not possible to access layers and export non visible ones.

Pdf2Png: just have a method to convert and is exporting visible and not visible layers but file result quality is bad. I have tried to change few properties but Quality still bad. It uses Ghostscript behind.

https://ezgif.com/ does not convert invisible layers.

https://pdf.io/pt/pdf2png/ does not convert invisible layers.

https://www.pdfpro.co/files does not convert invisible layers.

https://image.online-convert.com/ does not convert invisible layers.

https://www.zamzar.com/convert/png-to-pdf/ does not convert invisible layers.

https://easypdf.com/pt/pdf-em-png convert invisible layers.

https://cloudconvert.com/pdf-to-png does not convert invisible layers.

...

ANSWER

Answered 2020-Apr-22 at 18:04

The commercial SDK made by the company I work for will do this. You can mix and match the layers anyway you like, when exporting to PNG.

This sample (go to where the PDFDraw class is used) shows drawing each layer into its own PNG.

https://www.pdftron.com/documentation/samples/dotnetcore/cs/PDFLayersTest

From the above code you can see how to mix and match, though if you need more specifics, then please elaborate (sample PDF would also help) on exactly what layers you want to export and I can provide that code.

To try the sample out, and modify if needed, you can download SDK here: https://www.pdftron.com/documentation/windows/download/windows/

There is both Windows .NET Framework SDK, and .NET Core SDK for Windows, macOS and Linux, which you can download from link above. Look for the Layers sample in the SDK download.

Below is an online demo, where you can see interactively switching layers. You can open any PDF. It is the same engine as the server side SDK.

https://www.pdftron.com/webviewer/demo/pdf-layers

Source https://stackoverflow.com/questions/61370021

QUESTION

Converting PDF to Image - Swift iOS

Asked 2019-Nov-29 at 08:53

I am trying to convert a PDF file and all its pages to png images.

I have put together the code below filling the example on this thread How to convert PDF to PNG efficiently?

When I run the code, it crashes on the pdf file source (sourceURL) there is definitely a file there. and when I print sourceURl it prints the URL to the file.

The crash says it found nil - My understanding is that means it could not find the file? even though I can physically see and open the file and also print the URL to the file.

Can someone point out what I'm doing wrong?

Code:

...

ANSWER

Answered 2019-Jan-31 at 07:02

Make sure that your pptURL is file url.
URL(string: "path/to/pdf") and URL(fileURLWithPath: "path/to/pdf") are different things and you must use the last one while initiating your url.

The output should start with "file:///" prefix, f.e.

file:///Users/dev/Library/Developer/CoreSimulator/Devices/4FF18699-D82F-4308-88D6-44E3C11C955A/data/Containers/Bundle/Application/8F230041-AC15-45D9-863F-5778B565B12F/myApp.app/example.pdf

Source https://stackoverflow.com/questions/54454349

QUESTION

Convert pdf to png with animation package

Asked 2019-Jun-21 at 08:09

I am trying to convert this example pdf to png using the animation package the same way it´s done here Convert pdf to png in R

...

ANSWER

Answered 2019-Jun-18 at 13:54

The animation package uses ImageMagick for some of its features (which is why ImageMagick is listed as a system requirement in the manual). ImageMagick in turn apparently uses Ghostscript for PDF rendering. So yeah: the Ghostscript issues discussed here are certainly worth looking into.

Source https://stackoverflow.com/questions/56649049

QUESTION

How to generate the Thumbnail of the PDF first page in Xamarin Forms

Asked 2018-Nov-30 at 16:23

I'm using the Syncfusion PDF viewer for Xamarin Forms to display a collection of PDF files and it seems the conversion from PDF to PNG (to extract the first page (the cover) of the PDF file to show it, to the user, into a carousel) didn't work in Xamarin [see https://www.syncfusion.com/kb/9112/how-to-convert-pdf-to-png]

I wonder if there is a way to convert PDF into PNG on the Xamarin platform or if I should convert it on the server side.

Thank you.

...

ANSWER

Answered 2018-Nov-30 at 16:23

You can export PDF pages to images without using Syncfusion PDF Viewer control by consuming the PdfRenderer , CGPDFDocument, and PdfDocument classes.

Xamarin.Forms.Android:

Source https://stackoverflow.com/questions/53505364

QUESTION

Convert each page of a multi-paged pdf into separate png files in R

Asked 2018-Nov-20 at 19:13

I have seen a few questions asked involving trying to convert a pdf into a png but none of the answers show how to save each page of a multi-paged pdf as a different png file.

Starting out with an example 13-page pdf:

...

ANSWER

Answered 2018-Nov-20 at 19:13

We can create a png of each page using the image_read_pdf function from the magick package:

Source https://stackoverflow.com/questions/53399986

QUESTION

Load a PDF in a ActiveX widget

Asked 2018-Jun-22 at 06:48

I am trying to load a PDF into a QAxWidget:

...

ANSWER

Answered 2018-Jun-22 at 06:48

I was in the same situation and I was not able to "simply" show a pdf file in my application windows.

After a lot of tests and attempts I have found a workaround that works for me.

Instead of load the control "Adobe PDF Reader", that use Adobe Acrobat PDF API (AcroPDF64.dll), I load the control "Microsoft Web Browser" that use the dll of Internet explorer (ieframe.dll).

Here the code that I used:

Source https://stackoverflow.com/questions/45751646

QUESTION

Removing highlighted areas when converting pdf to image?

Asked 2018-May-23 at 17:44

I'm trying to convert pdfs to png which usually works great but I occasionally get this result.

There's two parts that are 'highlighted' which I'm not sure why since ImageMagick doesn't consistently do this.

Here's the code I'm working with:

...

ANSWER

Answered 2018-May-23 at 17:44

The issue you have is that your input has an alpha channel. So just removing the alpha channel or flattening it on white leaves that area as gray, since it is in the underlying image.

The best way to fix that is using ImageMagick -lat function.

See http://www.imagemagick.org/script/command-line-options.php#lat

As I do not have your original, I can only process your resulting PNG file, which shows this behavior.

Input with transparency

Processing

Source https://stackoverflow.com/questions/50492355

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install pdf-to-png

You can install using 'npm i pdf-to-png' or download it from GitHub, npm.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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