Frequently Asked Questions

No, the viewer works for Asp.Net only, supports .NET Framework 4.0+ 
.NET Standard 2.0+. However using a SDK license you can export
a document to Pdf within a Winform / Console App / Webservice.

Yes, Asp.Net MVC document viewer.

Yes, Asp.Net document viewer.

Yes, .Net core document viewer.

Yes, Blazor document viewer.

Yes, it does.

Yes, Amazon AWS S3, Azure Storage, Google Cloud, DropBox, Redis.

Yes, but there is no sample code for Vue. You can refer the Angular sample.

Yes, but please note that you can do this via a mobile browser, not as a native app.

IE 8.0 and above. Rest all modern desktop and mobile browsers. However we do encourage 
to check our online demo links from your set of required devices & browsers.

Asp.Net, MVC, .NET Core:
DOC, DOCX, ODT, XLS, XLSX, ODS, CSV, PPT, PPTX, ODP, PDF, VSD, MPP, TIF, XPS, PSD, DWG
DXF, DGN, EML, MSG, TXT,RTF, XML, EPUB, SVG, JPG, JPEG, BMP, GIF, PNG, HTML, MHT, DICOM

HTML & DICOM are not directly available with .NET Core. You can export to PDF and then view.
You can also try your own file.

No, you will not need to install anything on server or client side. Except any special fonts used.

Yes, it can be used for PDF conversion i.e. export. However it requires a SDK license.

Yes, ODT, ODS and ODP.

Yes, please download the free PdfJs pdf document viewer from Download page.

Yes, you can.

We will issue a temporary license to you, till you decide your final domain name.

Yes, you can view from a physical path, stream or from an url.

No, your files / information are secured inside your premises and there are no calls
are made to our servers at any point.

No, our product is a viewer. However you can add annotation and save them to PDF.

Yes, the Pdf format does support clickable links. Word and other formats can be converted to pdf.
Refer samples and documentation for more details

Dutch, English, French, German, Italian, Portuguese and Spanish.

We provide email support (24 hours turn-around time) and free product updates for 1 year.
You can however extend this. We do not provide phone or priority support.

Yes, there are many samples to get you started and a detailed pdf manual and an integration guide.

No.

No.

No. For large excel use SplitWorksheets as true in config.
You may also refer custom Excel viewer sample.

Yes. Use DefaultRender as false in config.

No.

Yes. You can convert them to JPG or PNG, using Magick.NET and then view.

No.

No. Please email us your questions.

Yes. Please email us.

You can change the ImageResolution to lower values (150, 100 or less; default is 200).
There is a trade off between quality and speed. You can set AutoLoadPages to true,
then the control will load pages beforehand. Another option for frequently viewed files,
is to export them to .DCN (see viewer.aspx sample) and then view the .DCN instead
of the original file.

Please refer AutoClose, TimeOut properties of the control and the WebFarm samples.

Please make sure you have kept the license file in "bin" folder. Next set the DebugMode
property to true and then reload your page.

Please make sure you have all the fonts used by your document installed on the server.
The viewer will not be able to match the original document 100%.

Please check if there is a load balancer or a web farm set up with multiple worker processes?
In that case you need to refer the WebFarm sample solution.
You may also check the timeout of IIS worker process, it is default 20 minutes. You can make it 0, never timeout.

Please check if you have the handler defined in web.config or is the middleware added in Startup.cs?
Refer the Integration Guide provided in the documentation folder.

Please ensure that you have installed all nugets like SkiaSharp etc. as mentioned in our Docker sample.

Please install this specific version of SkiaSharp (2.88.6) from nuget
and for linux/docker install SkiaSharp.NativeAssets.Linux.NoDependencies (2.88.6).

Change the IIS application pool settings to allow 32 bit applications.

You can try opening file from your own code as byte[] and pass it on to Doconut.
byte[] fileBytes = File.ReadAllBytes(path);

Yes it does, please refer our Ajax Document Viewer sample to get tips.

Yes! All Doconut products have a risk free, evaluation version available.

Yes! Our support teams will be glad to assist. We want to ensure there are no bad surprises after the point of purchase. We provide free support on an online forum that is maintained by our highly trained development staff. Whether you have purchased or are still evaluating we will always provide timely, helpful assistance.

You can generate a quote online, in the Purchase Portal.

Our payment terms are Net 0-day which means payment must be received in full before we will issue the license keys. We cannot provide the license earlier however if it's urgent then we can provide a temporary license to use while waiting.

Access to the license(s) is provided to you only after the successful receipt and processing of your payment. Once payment is received, a confirmation email will be sent that includes your license and instructions on how to apply it.

 Once purchased you can also download your license from the website when logged into to your account.

All products are available to download in Download page. We do not send physical copies of our software by mail. 

No, the binaries are the same, it is the license key that is applied which makes the software run in "production" mode without any limitations.