How to Enlarge a PDF for Printing: 9 Proven Methods

Enlarging a PDF for printing involves scaling the document so it prints at a larger size (e.g., from A4 to A3 or poster-size). This article is a list of reliable methods you can use.

Poster Mode in Adobe Acrobat Reader (Free)

Steps:

• Open the PDF in Adobe Acrobat Reader.
• Go to File > Print.
• Under Page Sizing & Handling, select Poster.
• Set the Tile Scale to increase the size (e.g., 150%).
• Adjust Overlap if needed.
• Print – it will tile the pages to form a larger version when assembled.

Custom Scale in Adobe Acrobat Reader

Steps:

• Open the PDF.
• Press Ctrl+P / Cmd+P.
• Find a Scale or Custom Scale option.
• Enter the percentage (e.g., 200%).
• Print to desired paper size.

Poster Mode vs Custom Scale

Feature	Custom Scale	Poster Mode
Scaling	Enlarges or shrinks proportionally to fit on one page.	Enlarges content and splits it across multiple pages.
Output	Fits the entire document on a single sheet.	Divides the document into tiles printed on multiple sheets.
Paper Size	Adjusts the content size to fit the selected paper size.	Content exceeds the paper size and is split into sections.
Use Case	Resizing for single-page printing.	Printing oversized documents or banners.
Assembly	No assembly required.	Requires assembling multiple sheets to create the full image.

Enlarge PDF via Microsoft Print to PDF

Steps: 

• Open PDF in a web browser like Chrome.
• Use keyboard shortcut Ctrl + P or Command + P to open the printer dialog.
• Set the destination as Microsoft Print to PDF.
• In More settings, set the Scale as Custom, and increase the scaling percentage to more than 100, like 150.
• Click Print to print the PDF.

Enlarge PDF in Microsoft Word

Word’s PDF import is best for simpler documents. For complex layouts (like forms, vector drawings, or heavily formatted PDFs), some formatting might not transfer perfectly.

Steps:

• Open PDF in Word and use corner handles to increase font/image sizes.
• Go to Layout > Size and choose a larger paper size (e.g., from A4 to A3, or Letter to Tabloid).
• Optionally go to Margins and set them to Narrow to maximize space.
• Scale with Zoom (Optional for Print Preview)
• Use File > Print.
• In the Print dialog, ensure “Scale to Paper Size” is set to your target size (e.g., A3).

Enlarge Specific Sections

If you don’t need to enlarge the entire PDF, the free PDF editor PDFgear allows you to enlarge a specific section using its PDF screenshot feature.

Steps:

• Get PDFgear on your device and open a PDF with it.
• Use the Screenshot feature to take a snapshot of a specific section, and save the image.
• Go to Edit > Add Image to insert the screenshot, drag on the corners to further enlarge it.
• Print the modified PDF.

Enlarge Text in PDF

If you find the PDF text hard to read, you can also choose to enlarge the PDF text. PDFgear’s free PDF editor offers a practical text editing mode for you to edit and format text in PDF.

Steps:

• Get PDFgear on your device and open a PDF with it.
• Go to Edit > Edit text.
• Select PDF text, click on the font size option above, and choose a larger size. Then Exit editing.
• Print the modified PDF.

With Preview on macOS

Steps:

• Open the PDF in Preview.
• Go to File > Print.
• In the print dialog, select Scale and set a value over 100%.
• Or use “Paper Size” to change target size (e.g., A3).
• Print.

Convert to Image, Then Resize

Steps:

• Convert PDF to image using tools like PDFgear PDF to JPG converter.
• Resize image using Canva or software (Photoshop, GIMP, Paint).
• Print resized image.