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5 Best ACSM to PDF/EPUB Converters to Convert ACSM

  • If you want to convert ACSM to PDF/EPUB, this guide provides you with the best software options, both paid and free.
  • My top pick for this task is the eBook Converter, which offers great converting speeds and ensures good eBook quality for the results.
  • The best ACSM to pdf/epub converter in the list can remove DRM protection from Adobe Digital Editions files (such as Google Books), so keep reading for more details.
  • I also have in the list some free online converters for ACSM files that support many more types of eBooks files, so check them out below!

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You probably have downloaded ACSM eBooks from your public library to the computer or pulled down the books locally from the Adobe Digital Editions application, but found the books could not be opened in your preferred PDF or ePub reading apps. That’s because ACSM books can only be opened via Adobe Digital Editions(abbreviated ADE) and have DRM protection. The only way to break this is to convert ACSM to PDF/EPUB (and remove DRM).

What is ACSM?

ACSM file is an Adobe Content Server Message file that contains information about downloading a digital publication and is protected by the Adobe DRM.

An ACSM file is not the actual e-book, but a type of link or message between the user and the Adobe Content Server DRM software. When you open an ACSM file, the actual eBook is downloaded from a remote source via the Internet.

When you download the eBook (i.e. from your Google Play bookstore), you will get a file named “URL.ascm”. ACSM files have an average size of 1-5 KB.

Summary:

  1. ACSM files are not ebooks.
  2. ACSM files manage the download of Adobe DRM-protected ebooks.
  3. ACSM files must be opened with Adobe Digital Editions.

What is DRM on Adobe Digital Editions ACSM?

DRM stands for Digital Rights Management, which is aimed to hinder unapproved access to or copying of digital content files. For ACSM books, DRM prevents users from copying its online library books for personal gains or for sharing with the public. The protected books that come from the library websites or popular booksellers can only be read on Adobe Digital Editions and a device running ADE service linked to your (same) Adobe ID.

How exactly do ACSM files and Adobe DRM protection work?

If creators or copyright holders choose to use Adobe Content Server to protect eBooks, when this content is purchased, it is automatically linked to the buyer’s Adobe ID. This ID is personal and non-transferable, and the user must set it up before purchasing any file with Adobe DRM protection. Without this ID, the Adobe server application running in the background has no way of knowing whether to grant access to the copy-protected ACSM file.

How can I convert ACSM files to PDF/ePub/Kindle/Word?

Multiple third-party tools can help you with this task. In this article, we take a look at the best ACSM converters to help you turn your ACSM eBooks into PDF (ePub, Kindle, Word) format.

Note: Some of these tools are free while others may require you to purchase a license code to use.

Best ACSM Converters in 2023

Adobe Digital Editions (Basic Requirement)

As I described in the previous part, Adobe Digital Editions is needed if you want to open the downloaded ACSM files.

Step 1. Get started with Adobe Digital Editions 4.5.

Download Adobe Digital Editions 4.5 for PC/Mac, run the installer, and follow the on-screen instructions.

Step 2. Authorize Adobe Digital Editions with an Adobe ID.

The first time you open the URL.ascm file, ADE will ask you to authorize your computer. The best way to do this is to supply an Adobe ID, associating the book with your ID.

You can also create an Adobe ID manually by clicking on “Help” > “Authorize Computer…” or you can just press Ctrl + Shift + U.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

Tips:

  • If you later open the book on another computer, you can simply supply the same ID to open the book.
  • A single Adobe ID can be activated on up to six different devices.
  • There are alternatives to Adobe Digital Editions such as Bluefire Reader. However, an Adobe ID is still required.

Step 3. Open/download ACSM via ADE.

Using Adobe Digital Editions to open the book.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

You can open a book in Adobe Digital Editions by double-clicking the book file, or you can open Adobe Digital Editions, by clicking File > Add to Library to add it to your ADE library. Then, double-click the book in the library to open it.

ADE will then download the eBook itself (some eBook files are large and this step may take some time), and it will be available in your Adobe Digital Editions bookshelf, from where you can read the book offline on your own computer.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

All downloaded eBooks can be found in the “My DocumentsMy Digital Editions” folder (Windows) or
“DocumentsDigital Editions” (macOS). You can right-click the book in Adobe Digital Editions and choose Show File in Finder to find the ACSM file stored location.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

When it’s finished you’ll have a PDF or ePub file, most of them are still DRM-protected.

3 Solutions when unable to open.ACSM eBooks (most common error messages)

a. If an error occurs when importing an ACSM file to ADE (License Server Communication Problem: E_ACT_NOT_READY), try to erase all remnants of previous activations. To do that press Ctrl+Shift+D, then press “Erase Authorization”.

b. When Adobe Digital Editions returns an error message W_ADEPT_CORE_LOAN_NOT_ONRECORD, it means no record for the book loan is found on this machine. It means that you are attempting to open a borrowed/rented book that was previously expired or returned.

c. If you see an E_ADEPT_REQUEST_EXPIRED error when downloading a book, that’s because the ACSM contains an expiry time, and if you don’t download the book within that token expiry time, you can’t download the eBook. Try to download the eBook again.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

Pros

  • Free.
  • The unique (must-have) program to open ACSM.
  • Also helps transfer the converted ePub/PDF file to another device (activated with the same ID).

Cons

  • Requires the Adobe ID all the time(Adobe DRM protected).
  • Impossible to convert ACSM to Kindle or Word format.
  • Can only open the converted ePub/PDF via compatible devices, you can not open them via Apple Books.
  • Exactly speaking, ADE is an ACSM file reader, not an ACSM file converter or ACSM DRM removal.

eBook Converter

eBook Converter is a feature-packed premium converter that lets you get full control over the Adobe ACSM files you purchased from online libraries.

Free DownloadFree Download

The downloaded ACSM format eBooks can be converted into ePub, PDF, Word, AZW3, and Mobi to enjoy the collection on all non-ADE-supported readers.

ACSM Converter

The tool comes with an Adobe detecting feature that allows you to drag the opened ACSM files from “Adobe Digital Editions Library” to its main workspace (thanks to its intuitive, drag-and-drop-compliant interface).

Let’s quickly look at its key features:

  1. Helps check whether the ACSM file is DRM-protected or not.
  2. Convert Adobe DRM ACSM files to unprotected formats in no time: EPUB, PDF, MOBI, AZW3, Word, TXT.
  3. Preserve original parameters (author, publisher, title…) upon converting files.
  4. Interactive guides to walk you through the conversion process.

Free DownloadFree Download

Pros

  • Auto detects Adobe ACSM files.
  • Removes Adobe DRM and converts ACSM formats at the same time with high speed.
  • Batch conversion.
  • Free upgrades, and free technical support online.
  • The free trial version helps convert 3 books totally for free, with no content limits.
  • Not only supports the ACSM to PDF epub conversion but also the ACSM to Word, kindle, and txt.

Cons

  • Paid software, $17.99 for Windows and Mac.
  • Must authorize and open the ACSM via ADE first.

Online ACSM Converter

There are a lot of online ACSM to PDF conversion methods.

ebook.online-convert is a website that specializes in format conversion. It can convert audio/document/ebook/image/video. Basically, you can solve all problems about format conversion on this website, as long as your computer is under the network. Next, we will show you how to convert ACSM to PDF online.
5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM
Get access to ebook.online-convert and then, upload the downloaded ACSM file directly to its main conversion area and start conversion.

Importance: Add books from Digital Editions to convert formats, please. Don’t directly drag the ACSM to convert, or after you get the converted PDF file you will find the content is not what you need because the ACSM file is not the actual book but a file containing the book’s info.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

Pros

  • Free.
  • Supports multiple input formats and output formats.
  • Batch conversion.

Cons

  • Only supports DRM-free ACSM files. DRM-protected ACSM files are not allowed to be converted.
  • Must authorize and open the ACSM via ADE first.

Calibre ACSM input plugin (Free)

By default, Adobe Digital Editions doesn’t offer an option to convert drm ACSM files to other formats. It’s an ACSM eBook reader and management tool.

It’s nearly impossible to convert drm ACSM to pdf/epub with Adobe Digital Editions. But after you successfully open your ACSM books with ADE, you can continue to try the following 3 tools.

Calibre is one of these tools as it’s a famous eBook management tool and eBook converter. It supports multiple eBooks formats.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

After you get the ACSM Input Plugin installed in Calibre, you should also enter your AdobeID credentials in the plugin settings.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

Then, import Adobe digital editions eBooks from the “My Digital Editions” folder to the Calibre library, click on “Convert books”, and choose ePub or PDF as the target format.

Pros

  • Free.
  • Converts Adobe ePub/PDF to DRM-free ePub, pdf, word, txt, mobi, etc.
  • Batch conversion.

Cons

  • Need to add an extra plugin to calibre manually.
  • Should add books manually.
  • Must authorize and open the ACSM via ADE first. You will likely fail when logging Adobe within Calibre, it causes the dedrm more difficult.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

Epubor All DRM Removal

Epubor All DRM Removal is a powerful tool that can remove DRM from Adobe and convert ACSM to a common ePub or PDF.

5 Must Know ACSM to PDF/EPUB Converters | Ways to Convert ACSM

While Epubor All DRM Removal is a premium software, you can still download the free trial to try it before making a purchase.

Free DownloadFree Download

Pros

  • Auto detects Adobe ACSM files.
  • Removes Adobe DRM with high speed.
  • Batch conversion.

Cons

  • Paid software, $19.99 for Windows, $24.99 for Mac.
  • The free trial version has limits: Restricts without date but has a limitation that decrypts 20% content of each book.
  • Can’t convert ACSM to Kindle mobi.
  • Must authorize and open the ACSM via ADE first.

Conclusion

Now you may find that converting ACSM files to ePub or PDF is not hard work. These 5 helpful tools can help you convert ACSM with ease in 2023 and make you enjoy your library eBooks offline.

In addition, you may find that eBook Converter can convert almost all encrypted ACSM eBooks to DRM-free. Why not try it?

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