In this article, you will learn how to crop the pages of a PDF document and how to combine multiple chunks of text (or multiple pages) into one document. You can do this on a Windows computer using Microsoft Word and Scissors, or using Preview on a Mac computer. If you do not have access to Microsoft Word and / or Viewer, use the free online PDF Resizer service.
Steps
Method 1 of 3: Using PDF Resizer

Step 1. Open the website of the PDF Resizer service
Go to https://pdfresizer.com/ in your browser.

Step 2. Click on Split PDF
It's in the upper-left side of the page.
If the document is only one page, go to the step “Click Crop PDF”

Step 3. Click Browse
This gray button is in the middle of the page. A new window will open.

Step 4. Select the PDF file
Click on the desired PDF document. You may need to open the folder with the file first - to do this, click on it on the left side of the window.

Step 5. Click on Open
It's in the lower-right corner of the window. The PDF file is added to the PDF Resizer site.

Step 6. Click Upload files
(Download files).
This button is at the bottom of the page.

Step 7. Check the box next to the "one page per file" option
It's under the PDF window.

Step 8. Split the PDF document
Click "Looks good, do the magic!" (Run). Now wait for the document to be split into separate pages.
This process can take several minutes, depending on the speed of your internet connection and the size of the document

Step 9. Download the document
Click the Download button on the right side of the page. The document will be downloaded as an archive with separate pages.

Step 10. Extract the files with the document pages
This way you can trim and merge them. For this:
- Windows: Double-click the archive (ZIP file) and click Extract> Extract All> Extract;
- Mac OS X: Double-click the ZIP file to open it.

Step 11. Open the website of the PDF Resizer service
If you closed this site, reopen it.

Step 12. Click Crop PDF
It's near the top of the screen.

Step 13. Click Browse

Step 14. Select the page of the PDF document
Click on one of the pages of the document you split.
You can only crop one page at a time. If several pages are uploaded to the site, they will be cropped to one template

Step 15. Click Open
It's in the lower-right corner of the screen.

Step 16. Click on Upload files
(Download files!).

Step 17. Select the area of the page to be cropped
Drag your mouse around the area of the page that you want to keep.

Step 18. Click Crop it
(Crop).
This button is at the bottom of the screen.

Step 19. Download the page
Click “Download” below the cropped page on the right side of the screen. The file will be downloaded to your computer.
Now load another page of the PDF document and crop it

Step 20. Click Merge PDF
It's on the left side of the toolbar, which is located at the top of the screen.

Step 21. Click on Browse

Step 22. Select all pages of the PDF document
Drag your mouse over all the pages you want to merge, or hold down the Ctrl key and click on specific files to upload to the site.
You can choose up to 100 MB or 50 pages (whichever limit is reached first)

Step 23. Click Open
It's in the lower-right corner of the window.

Step 24. Click on Upload files
(Download files!).

Step 25. Review the document prepared for merging
If the pages of the document are in the correct order, you can continue; otherwise, drag the pages up or down to rearrange them.

Step 26. Click on Looks good, do the magic
(Run).
This button is at the bottom of the screen. The individual pages will be combined into one PDF document.

Step 27. Scroll up and download the PDF
Click “Download” below the merged document on the right side of the screen. The document will download to your computer.
Method 2 of 3: Using Word (Windows)
Step 1. Open the PDF file
Open the document in a PDF reader application such as Adobe Reader.
If you don't have such a program on your computer, Adobe Reader can be downloaded for free here
Step 2. Go to the page you want to crop
If your document has multiple pages and you want to crop a specific page, make sure that page is open. Step 3. Open the Start Menu

Click on the Windows logo in the lower left corner of the screen. Step 4. Enter the scissors.
The search for the Scissors program starts. Step 5. Click the Scissors.
This program is at the top of the Start menu. A small window will open on top of the document. Step 6. Select the "Rectangle" option.
Click Mode (at the top of the Scissors window) and then click Rectangle (in the drop-down menu). The mouse pointer turns into a crosshair. Step 7. Select the area of the page to be cropped.
Drag the crosshair around the area of the page that you want to keep. When you release the mouse button, the pages will be cropped. Step 8. Release the mouse button.
The pages will be cut off and the selection will remain on the screen. Step 9. Click "Save".
It's a purple floppy disk icon at the top of the Scissors window. The Explorer window will open. Step 10. Click on "Desktop".
It's on the left side of the File Explorer window. This saves the cropped document to your desktop, making it easier to find. Step 11. Click Save.
It's in the lower-right corner of the window. The file will be saved to your desktop as Snapshot.
You can now crop other pages in your document
Step 12. Open Microsoft Word
The icon for this program looks like a white "W" on a dark blue background. Step 13. Click Create.
It's in the upper-left side of the window. A blank document will open. Step 14. Click Insert > Drawing.
The Insert tab is at the top of the Word window, and the Picture option is in the Illustrations section of the toolbar. Step 15. Select the image you created from the cropped document.
Click Desktop on the left side of the window, then click the Snapshot file and click Paste.
If you have cropped several pages, that is, created several images, hold Ctrl and click on each image that you want to insert. Click on them in the order in which they appear in the document
Step 16. Click File > Export.
File is a tab at the top left of the window, and Export is an option at the bottom of the pop-up menu. Step 17. Create a PDF document.
Click the Create PDF / XPS Document tab on the left side of the screen and then click Create PDF / XPS in the middle of the screen. Step 18. Save the file.
Select the folder where the final document will be stored on the left side of the window, enter a file name and click Publish in the lower right side of the window. The Word document with the inserted pictures will be saved in PDF format.
Method 3 of 3: Using the Viewer (Mac OS X)
Step 1. Open the PDF document in the Preview application
To do this, double-click on the Viewer icon, which looks like overlapping images, click File (in the menu bar)> Open (in the drop-down menu), select the file (in the dialog box), and click Open (in the lower right corner window).
Viewer is an image viewer application that is built into most versions of Mac OS X
Step 2. Click View
This menu is in the menu bar at the top of the screen. A dropdown menu will open. Step 3. Click One Page.
It's in the drop-down menu. One page of the document is displayed in the Preview window. Step 4. Click on Tools.
This menu is also on the menu bar. Step 5. Click Rectangle.
It's in the drop-down menu. Step 6. Select the area of the page to be cropped.
Drag your mouse around the area of the page that you want to keep. For example, if you want to keep the top of the page and cut out the bottom, place the crosshair at the top-left corner of the page and drag down and to the right to highlight the area to keep. Step 7. Release the mouse button.
The selected area will be surrounded by a flashing rectangular frame. Step 8. Click on Tools again.
This menu is on the menu bar. Step 9. Click on Trim.
The area of the page that is outside the border will disappear.
Repeat this process for each page you want to crop
Step 10. Click File > Export as PDF.
A pop-up window will appear. Step 11. Click Save.
It's in the lower-right corner of the window. The trimmed PDF will be retained (that is, the original document will be overwritten).