Components placed on the top layer of a Through hole PCBs are soldered from the bottom layer. If you want to create a surface mount PCB where the components are soldered on the bottom layer then place your SMT parts on the bottom layer.

When I press EElib\, the first resistor is the R\_0603\_US and the one next to it is the R\_0603\_EU\.  How do I know which parts to choose for my resistors to be through holes as well as the rest of my stuff? I know those numbers have something to do with it\.  Both of those types  of resistors will have me solder them on top\.  I am using a deluxe elegoo arduino kit and the resistors are 250 ohms\.  I tried looking at the specifics for each LED and resistor but cant find anything with numbers such as I see on the EasyEda program \(for example R\_0603\)\. I also wanted to be able to solder a jumper cable connected to my diode.  How can I make a through whole to be able to solder a jumper cable such as in my picture below?  Those 2 jumper cables are meant to touch the positive and negative end of a battery in my battery tester.

Fir specific components, please use the Shift+F Libraries tool and choose your parts from the LCSC  library if you just want specific parts with supplier codes but do not want them assembled onto your PCB when it is delivered. If you want an assembled PCB then choose from the JLCPCB Assembled library. To understand how to place footprints on the bottom of the PCB, place them on the top layer then swap them onto the bottom layer on the right hand panel. In the meantime, please read: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a)

For a through hole wire connection place a single pin header from the EElib and then find or create a PCB Footprint of a suitable dimensioned single through hole (multi-layer) pad and assign the name of that Footprint to the header symbol in your  schematic.

Can someone give me an example of a resistor or LED I can search for that I can mount onto the PCB and solder on the bottom?  That's my main question.  I want to be able to solder all of the parts myself.  When I add the resistor and LED, it looks like it will come already soldered.

I want my resistors and LEDs to have pads such as this (this is a picture I found):  But when I add my resistors and LEDs they look like this.  The arduino seems to have pads so that I can solder it and that's what I want for the resistors and LEDs. 

For through hole resistors and capacitors you need to look for parts axial packages. I think you need to have a read of some pages in Wikipedia about package types of electronic components and learn about the generic descriptions of the different sizes of surface mount and through hole packages.

For through hole resistors and capacitors you need to look for parts **in** axial packages.