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Upload image automatically to instagram with Selenium in java

I am using Selenium and I need to upload an image to instagram. But at the time the windows file selector opens I could not get it to search for the image and upload it automatically
Up to this point my application opens well, when it goes to the point of selecting the file it does not do it automatically
I tried using the following codes without success
driver.findElement(By.className(name)).send_keys('C:\\path-to-file\\file.jpg')
But it gives me back the value of the second photo, that is, it generates a file selector from the main folder and not the one that I pass through as a parameter
I am using the following versions:
Java: 8
Selenium: 3.14
ChromeDriver: 76

Normal browsers don't allow JavaScript any access to the local disk. This is basic security. Imagine what would happen if you visit some site and it reads your local password file or any other important data without asking you.
If you want to upload files, take some standalone application or write a small utility that will do that. For instance, try instapy, you can find it pypi.org or on github. It is a matter of taste, the other can prefer other tools. Just try several tools and see which fits your need better.

The window opened for file explorer is not part of the browser and therefore it can not be interacted with via selenium. The solution to this is a software called AutoIt. Use the following link for a guide on how to use AutoIt for file uploads : Link

Java Screenshot of multiple webpages

i'm not going to post any code here because i don't know how to start doing it. Actually I need your help...
I am working with java (using netbeans, btw) and I have a database with multiple urls in a table (MySQL), and i want to get a screenshot of every url listed there, save it to my pc and then insert that screenshot (jpeg) in the url table. I was looking here on stackoverflow but i had no answer (not an automatic one, because i have to open a web browser and the aplication is supposed to be a standalone app) (The other option i found in this article -> (this) is unavailable.
In the same article i've read about the Flying Saucer Project, and maybe is the best option, but i have no idea of how to use it and i don't want to waste valious time reading every single thing that the project can do... so i'd appreciate a quick tutorial of how to use it.
Please, if u can post some code here would be great, but at least i'd like an answer of how to do this, or mambe some suggestions, that would be nice too. THANKS EVERYBODY.

You should take a look at CutyCapt:
CutyCapt is a small cross-platform command-line utility to capture WebKit's rendering of a web page into a variety of vector and bitmap formats, including SVG, PDF, PS, PNG, JPEG, TIFF, GIF, and BMP. See IECapt for a similar tool based on Internet Explorer.
Just execute the application from within your Java application. See Running Command Line in Java. The result would be something like::
p = Runtime.getRuntime().exec(String.format("./CutyCapt --url=%s --out=%s",
url, path));

how to convert a HTML web page into a PDF file using Java

i've been searching on the internet on how to convert a HTML page into a PDF file using Java. i found a lot of pointers, and in short, they don't work or are too difficult to implement. i also downloaded a commercial product, pdf4ml; the API is something i'd be happy to work with, except that when i crawled a simple page on wikipedia, i get a out of memory error (setting Xmx to 1024 M). in some approaches, they suggest converting HTML -> XHTML -> FO -> PDF. however, i am getting a lot of exceptions for the XHTML-to-FO XLS file; and reading the documentations, it's not something that i have enough time to understand right now.
here are my questions/concerns.
1. is there another cohesive API out there that will easily convert HTML to PDF (commercial or not)?
2. is there a way i can simply capture a HTML page and store it as a single file. this approach would be similar to using internet explorer's way of saving a web page as a web archive (single file, MHT format)?
any help is appreciated. (btw, i know this question has been asked repeatedly, but in addition to the original spirit of the question, i'm opened to other ways). thanks.

Try wkhtmltopdf, which is using WebKit. Another option (I'm using that currently) is using OpenOffice (remote controlled via macros).

you may use iText open source Java lib for that, and read this
or use YaHPConverter open source Java lib.
or do this whith help of icepdf popular open source lib
or use pd4ml, but it not free, only trial.
or use this, and this is man for it.

My 2 cents using opensource tools:
You can use either Capture screenshots with Selenium or WebDriver to save html page's screenshot in an image file from your Java code. And once you have image file you can convert it to pdf again from your Java code.
EDIT:
It seems you can do all that in 1 step using itext Html to Pdf

I am not sure but you could Try
1) cobra html rendering engine http://lobobrowser.org/cobra.jsp
2) htmleditorkit -- part of jdk
3) JWebPane
Use the rendering kit to parse and render html. The rendered out put is a swing component. Swing component can be used by itext to generate pdf file out put

You can try out Pdfcrowd. It is an easy to use commercial online API with many options and with support for Java.
It can create PDF either from web pages or raw HTML code.

How to show the printable document directly in acrobat with out saving?

I am using PD4ML to print a PDF file and It is working fine. Now the thing is I want show that file directly in acrobat with out save that file. In Local version I am using
Program.launch(getFilePath());
It is working fine but in web version I am unable to get that.
Can you please suggest me, Its very helpful.
Thanks,
Vara Kumar PJD

The web isn't like your desktop, so forget about doing things on the web the way you do them on the desktop without at least some effort.
Know that you don't read PDF files on the web using Acrobat without a browser plugin. Or some other reader like Foxit Reader.
My recommendation: forget about doing it this way. Either server your pdf as a file that can be downloaded, or read this SO post about embedding PDF in HTML.

I don't think this will be possible: "showing file outside browser in an application without user consent" because that is how browser are made for security reason. The best you can do is, as pointed in earlier post is by darioo, to show file in browser or prompt user to download/open.

Multiple file uploader with previews

I'm trying to find something that will let users upload multiple files to a website. The requirements are that it let them easily select multiple files (preferably with something like check boxes) and that it displays a preview of the images they select.
I'd prefer to only use Javascript or Flash if possible, but Java is also an option (this needs to work on platforms where Silverlight isn't available).
So far all I've been able to find are things that use the native file selector (which doesn't show previews on Windows, and makes it unclear that you can select multiple by holding ctrl).
I'm not sure if the preview requirement is even possible, but it's the most important.

This is a firefox solution:
It uses the FileReader javascript object to load, display and upload images.
http://hacks.mozilla.org/2011/01/how-to-develop-a-html5-image-uploader/
It still doesnt show previews in the FileSelection dialog but at least allows you to preview the images before uploading.
And here is a ready made java applet solution:
http://jumploader.com/doc_overview.html

To upload multiple files I use RichFaces rich:fileUpload component.
Concerning the preview, I've got the similar problem and the best I found after couple of days of googling is following.
Alfresco has the same problem and resolved it with :
An open office which runs in server mode (socket) and all the office documents are sent by alfresco to open office in order to convert them in PDF
Those PDF are converted to .swf viewer thanks to SWFTOOLS
This .swf is integrated in the HTML
For images, it uses ImageMagick to create small version of the file I suppose
Personnaly, I will try to implement it this way :
Converting office documents to PDF thanks to open office in socket mode
Transform the first page of the PDF into a PNG thanks to JPedal library
Diplay that PNG to the end user
For images I would perhaps use ImageMagick too ... but for now, I'm using Seam Image.scaleToFit API

I am assuming 2 things here:
1) Some kind of client/enduser will be doing the file upload
2) You get some kind of say on what the client installs on their computer to help make this happen.
If this is the case, my first suggestion would be:
Give them FTP or SFTP client software to upload files. The php page you make can have a link to Filezilla, along with instructions on how to use it. ftp and sftp are THE protocols to use for transferring files. HTTP is just not designed(well) for it, nor are browsers.
Once the user has the (S)FTP client software installed, you can give them URL's to upload files to that are specific to their user account, and you can have a backend script process and load/move files that they upload. It's pretty easy to create a local temporary directory using a server side script, have the client upload files via ftp, then go back to the web browser and click a button that says "Done uploading, please process my stuff".
The browser can even give back confirmations on everything that gets uploaded/processed.