When you've purchased an eBook (involving a monetary expenditure) that can only be accessed through Adobe Digital Editions(now maintained by Harman Samsung as of July 2025), you might wonder if it's feasible to convert Adobe Digital Editions to pdf--the world's oldest but the most popular one.
The answer to this question is a resounding "Yes," of course. However, before undertaking the conversion process, it's essential to understand that Adobe Digital Editions employs a proprietary Adobe Adept DRM scheme (commonly referred to as Adobe DRM). Consequently, ebooks protected by Adobe DRM can exclusively be accessed using apps or eReaders that support Adobe DRM. Moreover, these files cannot be copied or transferred to other locations due to the DRM protection in place.
What software can I use to turn Adobe DRM-protected files into PDFs? Don't worry. Here I will introduce 3 effective methods.
Which eBookstore and Library/Lending Platform Will Deliver .ACSM File?
Here's a comprehensive breakdown of eBookstores and platforms that use ACSM files and require Adobe Digital Editions.
| No. | Name | Notes | |
|---|---|---|---|
| eBookstore | 1 | Kobo | Kobo's reading apps and eReaders can automatically download and open most books from the Kobo Store without ADE. |
| 2 | Google Play Books | "Export ACSM for..." means full encryption via Adobe. | |
| 3 | Booktopia | Australian retailer using Adobe DRM | |
| Library | 1 | OverDrive / Libby | Click "Download" -> choose "EPUB (with Adobe DRM)", then you will get .acsm. Libby on mobile — it has its own built-in reader and doesn't require ADE when reading directly in the app. |
| 2 | Hoopla | Requires ADE to load borrowed books onto compatible e-readers. | |
| 3 | Onleihe | Popular in Germany and Europe; used by public libraries for German-language ebook lending via ADE. | |
| 4 | Cloud Library | ADE-based workflow | |
| 5 | Academic/University Libraries | e.g. Ebook Central, EBSCO, VLeBooks |
Adobe ACSM File Compatibility
Here's a full compatibility summary for Adobe ACSM files:
| ACSM Reader for PC/Mac/Device | ACSM Support | Notes |
|---|---|---|
| Adobe Digital Editions (ADE) | Full | ADE and Adobe ID required to open .acsm files; (no official ADE for Linux) |
| Calibre + DeACSM plugin | Full | Download and convert ACSM without ADE. |
| Aldiko | Partial | Third-party reader; supports ACSM. |
| Adobe Acrobat / Reader | No | Doesn't open .acsm files unless they are turned into common PDF. |
| Apple Books app | No | Cannot open .acsm files. |
| Kobo all models | Yes | Almost all Kobo e-readers support Adobe Digital Editions, and Kobo eReaders can directly borrow and return library books from OverDrive/Libby. |
| PocketBook | Partial | Users can transfer .acsm files via PocketBook Cloud, Dropbox, or email; Newer Android models white-labeled from Bigme may not support ADE. |
| Tolino | Partial | Some Tolino e-readers support ADE and Onleihe (for public libraries in Europe). |
| Amazon Kindle | No | Kindle e-readers do NOT support Adobe DRM. |
More Reasons that You Must Convert ADE to PDF Format
As what you see in above table, Apple Books app and Amazon Kindle eReaders (and more) won't directly open .acsm books.
| Adobe ACSM Limits | Details |
|---|---|
| Readable on | ADE, Calibre, Kobo, PocketBook, Tolino; Kindle and Apple Books won't open adobe files. |
| Device limit | Adobe allows up to 4 authorized devices per Adobe ID. |
| Expiry | .acsm files expire within a few days if not opened. |
| Text-to-speech | Not compatible with text-to-speech software. |
| Printing is restricted/blocked | Print may have a page limit; The publisher may disable the print function. |
| DRM restrictions vary | Most books are with Adobe DRM protected, which limits the printing / transferring / backing up. |
Say more, if the retailer shuts down, your .acsm file may stop working (this is why backing up the actual EPUB/PDF matters).
Ensure You Can Open Your Books via ADE First
Before converting your ADE books to PDF, please ensure you have downloaded your books from library offline and you can open them via the Adobe Digital Editions application.
ADE will connect to Adobe's servers, validate your license, and download the actual EPUB or PDF to your computer.
Books opened via ADE are saved under "My Documents/My Digital Editions/" folder.
Now you can drag the actual ePub or PDF format book to any third-party ADE2PDF tools as what I introduce in following content.
Method 1. Convert Adobe Digital Editions to PDF Online
There are some online converters that can convert Adobe Digital Editions to PDF if you want to convert the files online. For example, ebook2pdf, Zamzar.
Follow the two simple steps to convert ebooks to PDF with the online free tool.
Step 1. Click "UPLOAD FILES"(or drag files directly from local drive) and select the target one.
Step 2. Click "DOWNLOAD ALL" to save the converted PDF files.
Pros: It's very easy and convenient for you to operate when you are online. Those converters support many kinds of formats and they're totally free.
Cons: We cannot use those programs when you are offline. That means you cannot convert Adobe Digital Editions to PDF when you cannot connect to the Internet.
We will be disturbed by ads that pop up from time to time.
Almost all of the online eBook converters don't support the DRM protected eBook titles.
Method 2. Convert Adobe Digital Editions to PDF Calibre (Free)
Also there are ways to convert Adobe Digital Editions to PDF free. Here I recommend Calibre. Converting Adobe Digital Editions to PDF Calibre, you need to download and install this tool.
Step 1 Click here to download Calibre (version 9.x) and add DeDRM Plugin(v10.0.30) to Calibre (for removing adobe drm).
Step 2 Run Calibre and click the "Add books" button at the top left corner to import books.
Step 3 Choose one book (or multiple files) and then click on "Convert books" button.
Then a new window will appear, and you can choose your output format as PDF at the top right corner of the new window. Click the "OK" button and it will convert your Adobe Digital Editions ebooks to PDF.
It's easy to use Calibre to convert Adobe Digital Editions ebooks to PDF. Now you can print the converted PDF out or transfer it to other devices.
Pros: Calibre is free. And its management function is really powerful.
Cons: You need to install DeDRM plugins if you want to convert DRM protected ADE books. What's worse, you can't get any help from Alf's developers if you meet problems.
Method 3. Convert Adobe Digital Editions to PDF Mac/Win with Epubor Ultimate
How to convert Adobe eBooks on Mac or Windows computers with ease? Here you will meet a powerful all-in-one tool — Epubor Ultimate. It's a powerful program for you to remove DRM and convert ADE eBooks to pdf or any other formats. As one of the best eBook Converter, it stands in contrast to Calibre in that it has much simpler interface and 7/24 customer support. Compared with the above two-mentioned two methods, this tool is user friendly and much easier. It allows you to remove adobe drm and convert Adobe Digital Editions to PDF without installing the plugin or keeping the internet connection all the time. Please go ahead to find the detailed steps to convert Adobe Digital Editions to PDF with Epubor Ultimate.
Step 1 Download and install Epubor Ultimate.
Step 2 Remove Adobe DRM.
Run the program, on the left panel you will find that it automatically detects all your Adobe eBooks(opened and downloaded via ADE). Drag the books to the right area of the program directly, then it will remove adobe DRM within seconds.
Step 3 Convert to PDF.
Choose the pdf as the output format at the central bottom, then click "Convert to PDF" button. The files will be converted to PDF immediately.
Pro features: as above image shows, Epubor Ultimate also supports converting the adobe drm to kindle supported format (mobi or azw3).
Pros: Easy to use; 24 hours online customer service and technical support; No extra plugin to install.
Cons: Paid software. Free trial version only converts 20% of each book.
From the steps above, it is clearly show that the Epubor Ultimate is easy to operate. It comes with DRM removing and ebook format converting functions. Also, this best Adobe to PDF converter will get your Adobe books converted at a faster speed and higher quality. It does the job fast and efficiently, where most other software and online converters fail.
This tool makes every penny of the price of the software worth it.
Final words (epubor customer story from María Angélica Mora)
I bought a course to prepare for the GMAT, and since I don't live in the United States but in Chile, it wasn't possible for me to have the physical books sent to me (due to the shipping cost involved). The course I purchased included digital format books, and I planned to print them myself (I'm someone who needs to have things on paper to work and study better). However, it was a big problem and a great concern for me to realize that the books had to be read in Adobe Digital Editions and I couldn't print them. There wasn't much I could do because the course was already paid for. I started searching for options, and nothing worked until I found Epubor Ultimate. Thanks to this program, I was able to convert the files to PDF, print them, and start preparing for the test in the best possible way :)
Failed to Open ACSM via ADE? ADE Crashed? Bypass ADE Going Forward
Whether the ACSM ultimately resolves to EPUB or PDF is usually decided by the publisher/library, not the user — so ADE's own PDF-format ACSM files skip the conversion step entirely and just need DRM removed. You can choose either Epubor Ultimate or Calibre DeDRM plugin to help you remove the drm protection.
However, since ADE ended Adobe ID support and started to force users to use ByteBooks ID instead of Adobe ID to log in with ADE, more and more people reported that they failed to open their ACSM format files. Whenever they tried to start ADE, it crashed!
In this case, what can we do after we downloaded the library acsm files? Is it possible to convert ADE to PDF without Adobe Digital Editions?
The answer is yes, have a free trial of Epubor ACSM Mate please. It works by re-implementing ADE's own authorization protocol. With a single app, you only need to sign in, import the ACSM, get a DRM-free EPUB/PDF. No ADE, no separate plugins pairing.
Practically, the one thing you can't skip is the Adobe/ByteBooks account itself — the ACSM file is tied to that authorization regardless of which app processes it. So before starting to use ACSM Mate tool, ensure you have successfully migrated your Adobe ID to ByteBooks ID.
Ada Wang works for Epubor and writes articles for a collection of blogs such as ebookconverter.blogspot.com.
Thank you for your comments. The free trial allows you to convert 20% content of each book.This will help you find out if our software can handle your books or not. If you want to freeware, please try Calibre. We've already mentioned in the article.
Have a nice day.