How to merge multiple jpg images to a pdf on Linux?
I have multiple jpg images as files like 001.jpg, 002.jpg …
How to merge multiple jpg images to a pdf on Linux?
convert is your good friend:
convert *.jpg output.pdf
I have multiple jpg images as files like 001.jpg, 002.jpg …
How to merge multiple jpg images to a pdf on Linux?
convert is your good friend:
convert *.jpg output.pdf
After the recent iOS upgrading to version 13, many older iPhones such as iPhone 8 turn to be running slower, although there are many new features. New features and functions use more CPU/GPU/memory and the iOS may run slower. But are there any methods to make it run faster? After quite some research and testing,…
How to disable automatic comment insertion in Vim? Add to ~/.vimrc: au FileType c,cpp setlocal comments-=:// comments+=f:// More: http://vim.wikia.com/wiki/Disable_automatic_comment_insertion Read more: Vim: Pasting text as is in Vim in Paste Mode Profiling Vim to Find Out Which Plugin Makes Vim Slow How to disable an option with a bash script? Disable WordPress Built-in Canonical URL…
ECDSA keys are commonly used in various areas like blockchains. OpenSSL is a commonly used tools in Linux for handling signature/encryption/decryption. This post introduces how to generate ECDSA keys using OpenSSL in Linux. Generate keys for K1 secp256k1 elliptic curve We start with K1 (secp256k1) as the example. To generae ECDSA keys using other curves,…
I made some changes to /etc/sysctl.conf. I know it will take effect next time Linux boots. However, how to make the changes to sysctl.conf take effect without rebooting Linux? You can force Linux to reload the new configuration in /etc/sysctl.conf by: execute the following command as root: sysctl -p For more details, check the manual…
How to make fdisk -l display partition sizes by bytes instead of sectors? fdisk does not have such options as far as I know. However, good news is that you can use parted: # parted -l It will print partition info like # parted -l Model: Linux device-mapper (linear) (dm) Disk /dev/mapper/fedora_vm235-swap: 2164MB Sector size…
For heavy Terminal/Shell/command line users, the Control key is a very frequently used key. However, in Mac Pro keyboard, there is only a single left Control key for some models. This cause quite some inconvenience. In this post, we will go through how to configure/remap the keys to “create” a right Control key. Remap keys…
Note that convert will read the uncompressed input files into memory before converting to pdf, so if you have a lot of files, you might run out of memory.
An alternative approach is first convert each file to pdf, and then combine the pdfs into one.