A Guide to PDF and How To Combine PDF Files | PDFen

How To Combine PDF Files and Know What You're Doing

Practically everyone uses PDFs in some way, but are you taking advantage of a service that can combine PDF files? The PDF or Portable Document Format file type is ubiquitous and unavoidable as a necessary technology virtually everyone uses. A huge variety of programs can view PDFs, many of which everyone owns, perhaps without realizing it. They are exceptionally useful files that can, for example, be used as attachments online. When you combine multiple files into one or several PDFs, you can make it vastly easier to attach and view multiple files in one place.

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Tuesday, 30 November 2021

New PDFen website

PDFen has a new website! What has changed and what are the benefits?

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Wednesday, 24 June 2020

Free credits by leaving a Google review

At PDFen we currently have the promotion that if you leave a Google review about PDFen you will earn 250 PDFen credits! 

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Saturday, 21 March 2020

PDFen.com stops support TLS 1.0 and TLS 1.1

For parties that use the api of PDFen.com it is good to check that you are still using the outdated and unsafe TLS 1.0 and TLS 1.1 protocols.

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Tuesday, 10 March 2020

Convert your e-mail to PDF and change the time zone

Recently (December 2019) PDFen.com has a new functionality, namely forcing a time zone in the PDF. What's up with that? 

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Sunday, 05 January 2020

licenses for companies

When you are looking for a conversion software for in your company then has PDFen two options for you! Are you curious about what these options are and what it would probably cost? Then read further below! 

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Monday, 09 September 2019

Automatic PDF conversion with the (API) link via PDFen

Do you want your files and/or emails automatically converted to PDF or PDF/A? With the integration of the automatic PDF conversion into your own software, your files and/or e-mails are automatically converted to PDF or PDF/A. Because of this you will never have to manually convert your files to PDF because the automatic PDF conversion immediately creates a PDF version of the file that has been sent to you or prepared by you.

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Monday, 12 August 2019

Retention obligation for entrepreneurs

Did you know that in almost every country an entrepreneur is obliged to keep their administration for at least a couple of years for the tax authorities? In the Netherlands for example entrepreneurs are obliged to keep their administration for at least 7 years! What exactly should you save? What is the best way to save your documents? If you want to know how long you are obligated to keep your administration, we would recommend you to look it up at the internet! 

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Tuesday, 16 April 2019

What is PDF/A-3 and what is the difference with PDF/A-2?

attachment in pdf

The PDF/A-3 standard is an in 2012 published standard. PDF/A-3 is completely based on the guidelines which are decided by ISO (International Organisation for Standardisation) in ISO standard 19005-3.

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Monday, 08 October 2018

What is PDF/A-2 and which types are there?


The PDF/A-2 standard is a publicized standard from 2011. In contrast to PDF/A-1, PDF/A-2 is entirely based on the guidelines set up by the International Organisation for Standardisation (ISO), and have be recorded in ISO standard 19005-2.

PDF/A-2 is the best standarised format to archive your digital documents!

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Monday, 09 July 2018