Split and Merge PDF Files
While the document is being developed, its content may require drastic changes. It can be assembled into a single document out of several sections. Some pages, paragraphs, and sections may be modified, rewritten, moved, or copied into a separate document. With Master PDF Editor you can perform these tasks effortlessly.
Extract Pages from a PDF
The Extract pages feature lets you copy specific pages from the multi-page document into a new PDF file. Use it to share only relevant sections or reduce file size. This section describes the extraction process in detail.
Extracting pages from one document and saving them to another
To extract pages and save them as separate documents, use the the Document > Extract Pages… menu or press Ctrl+Shift+E. The following window appears:

Here you can specify which pages of the current document you want to extract and save under a new name
Pages are extracted in a new document with the name [original file name]_[indexes of extracted pages].
- The File Name box allows you to specify or browse for a file to save the extracted pages to.
- The Page Range section determines what pages are extracted.
- Extraction Format.
- Extract to a single file. If enabled, this option extracts all the selected pages as a single PDF document.
- Extract by page range. If this option is selected, the pages are extracted into separate documents based on the specified page ranges. Example of page ranges: 1,6-8,12.
- Extract to multiple files. This option saves each of the selected pages as an individual document.
- Export bookmarks. If there are some bookmarks pointing to the specified pages, those bookmarks are exported too.
- Delete pages after extracting. This option removes the extracted pages from the original document, effectively splitting the PDF document into two or more documents: the extracted one(s) and the original document saved without the extracted pages. This action cannot be undone.
- Create a bookmark with the name of imported document. If enabled, a bookmark will be created with the same name as the imported document has.
Click Export to extract pages.
Page extraction from some PDF files may be restricted by their owners. Restrictions can be found here: File > Properties > Security.
Split PDF
This feature allows breaking down one document into several smaller parts according to the specified number of pages or file size. The function makes it easy to archive or share large files.
How to Split a Document
To split a document, open the PDF you want to work with and select Document > Split Document. The Split Document dialog box opens.

In this window, you can configure the splitting parameters
- Choose one of the splitting methods:
1.1. Select Every … page(s) and enter a number of pages per part. The document will be divided into parts, each of them containing the specified number of pages. The last part might contain fewer pages.
1.2. Or select By size less than … MB and enter the maximum size in MB per part. The document will be split into parts, each of them not exceeding the size limit. The last part might be smaller. - In the File Name field change the name if needed and click the Browse button to choose the destination folder.
- Set any additional options you need (see below).
- Click OK.
When the process finishes, the new files are saved in the chosen folder.
Additional Options
• Open destination folder. Automatically opens the folder with the new files after splitting.
• Overwrite existing files. Replaces files with the same name without asking for confirmation.
• Export bookmarks. Copies bookmarks from the original document to each new file.
Please consider the following limitations when splitting a document:
• If any page exceeds the size limit, it is still included but without optimization.
• If you cancel the process, no split files are saved.
• Attachments from the original document are not copied to the resulting files.
Merge PDF Files
This function allows merging and systematizing multiple separate PDF documents in a single file.
Merge using the Insert Pages tool
To merge two or more PDF documents into one, click the Document > Insert Pages… menu or click Ctrl+Shift+I. The Insert Pages dialog opens.

Dialog box with page insertion parameters
Here you can browse for all PDF files you want to assemble into one single document.
- Click the Add Files or the Add Folder button to add a specific PDF or image file(s) or the entire contents of a folder to the below list.
- In the list, rearrange the added PDF files in the order their contents must follow in the final document by using the Up and Down buttons.
- For each document, you may specify a page range to import from that document by clicking the Page Range button.
- Set the position where all the selected documents and pages should be inserted: Before current page, After current page, Before first page, After last page.
- The Import Bookmarks option transfers bookmarks associated with the imported pages too. If Create a bookmark with the name of imported document is enabled, a bookmark will be created with the same name as the imported document has.
Click OK to import pages. Master PDF Editor will open the specified documents and import the given pages to the current document from them inserting them to the position you have set.
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