Tips and Tricks

HowTo merge pdf with PDFsam

Hi, I just added a simple tutorial on how to merge pdf documents with PDFsam, follow the described steps to merge pdf in a minute. I’ll write tutorials for the other PDFsam modules soon. Enjoy

And now we are social!

Hi, some time ago I wrote a post about PDFsam being on Twitter and the repository for version 3 on GitHub. Following the same path and trying to be more social and less grumpy, we added the Facebook page and the Google plus one. Follow us and stay updated!

PDFsam on GitHub and Twitter

Hi everbody, I’m finally back on PDFsam, hopefully full time, and I hope I’ll be able to give you some early version of PDFsam v3 soon. First steps taken are the new GitHub repository for the source code ( and a new Twitter account ( where I’ll keep you updated on the development status.

Pdf merge and bookmarks handling

Hi, few days ago we released a new version of Sejda and its command line interface. This new release has a nice feature regarding outline (bookmarks) handling during a pdf merge task that might be interesting for some of you. When you merge pdf documents, you can now tell Sejda what to do with the

Mac OS X “PDFsam is damaged and can’t be opened”

Hi Mac users, some of you reported the “PDFsam is damaged and can’t be opened” error when trying to install the PDF Split And Merge dmg package. After some investigation and users feedback I can finally write what is causing that. The issue is caused by a new feature of Mountain Lion and OS X

Pdf merge page selection

Hi, here is a simple tip to remind you how page selection works. When merging pdf files you’ll often need to merge only a subset of the document (a chapter, some pages..). PDFsam supports page selection in the form of comma separated values where they can be single pages or page ranges. Page numbers cannot

Wiki reminder

Hi everybody, I want to remind you about the pdfsam HowTo wiki page here. If you have to merge pdf documents or split them and you don’t seem to figure out all the available options, take a look at the Wiki to have a brief description of them.

Category: Support Tips and Tricks

OutOfMemory tutorial

Hi everybody, I updated the Wiki adding a simple tutorial on how to modify the amount of memory that PDFsam can use to minimize OutOfMemory errors. Here is the link.

Cannot find javaw.exe

Windows only. If, when you double click the pdfsam.exe, an error window shows the message “Cannot find javaw.exe”, it means that it cannot find a working Java installation. To solve this problem try installing (or reinstalling) a working Java Runtime Environment (1.4.2 or above). It can be found here . Andrea


What if you can’t load pdf documents because an OutOfMemory? Running PDFsam double clicking the .jar file will run the Java Virtual Machine with default settings, this means 64mb of memory that could be not enough to load your documents. To increase the memory amount you need to use the -Xmx option; the command is