diff --git a/README.md b/README.md
index 1750b0a614751de7c52c5d7b808c5e771cb8e929..4c6bbbec95a5d6a454ca56863c30eb7c6c1609e6 100644
--- a/README.md
+++ b/README.md
@@ -10,19 +10,19 @@ https://raw.githubusercontent.com/qbolsee/ArduinoCore-fab-sam/master/json/packag
 
 You can then install the package by opening up the Boards Manager:
 
-<img src=img/board_manager.png width=65%>
+<img src=img/board_manager.png width=50%>
 
 And looking for a package called `Fab SAM core for Arduino`. Simply install the latest version:
 
-<img src=img/install_board.png width=65%>
+<img src=img/install_board.png width=50%>
 
 A new menu appears under `board`, letting you select a variety of chips. Some generic names contain an `x`, for instance for a SAMD21E17, you would select `Generic x21E`:
 
-<img src=img/board_list.png width=65%>
+<img src=img/board_list.png width=50%>
 
 Then select the right microcontroller in the next menu:
 
-<img src=img/microcontroller.png width=65%>
+<img src=img/microcontroller.png width=50%>
 
 ## With bootloader
 
@@ -30,7 +30,7 @@ Because the SAMD family has native USB support, they can easily talk to the host
 
 This can be achieved with a bootloader, that first needs to be installed on the microcontroller using an external programmer. After this, your board will behave like an official Arduino board and can be flashed through the serial port without any programmer plugged in.
 
-<img src=img/with_bootloader.png width=65%>
+<img src=img/with_bootloader.png width=50%>
 
 ### Burn bootloader
 
@@ -40,7 +40,7 @@ Connect a CMSIS-DAP adapter (Atmel ICE is also fine) to your board and make sure
 
 Select the right board and microcontroller, then `CMSIS-DAP` as the programmer, then click on `Burn Bootloader`.
 
-<img src=img/burn_bootloader.png width=65%>
+<img src=img/burn_bootloader.png width=50%>
 
 If all goes well, your board will now be detected as a serial port and you can start uploading to it through the bootloader.
 
@@ -59,7 +59,7 @@ This is a special scenario where you have a bootloader but still want to upload
 
 In those cases, connect a programmer and explicitly pick `Upload Using Programmer`:
 
-<img src=img/upload_programmer.png width=65%>
+<img src=img/upload_programmer.png width=50%>
 
 ## Without bootloader
 
@@ -67,7 +67,7 @@ As expained previously, bootloaders use some of the flash. With the SAMD11, we o
 
 To enable this behavior, simply select `NO_BOOTLOADER` in bootloader size:
 
-<img src=img/without_bootloader.png width=65%>
+<img src=img/without_bootloader.png width=50%>
 
 ### Upload