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How to Send PDFs Through Gmail: The Ultimate Guide

When it comes to sending and receiving emails, Gmail is top of the list, where millions of professionals use Gmail services to send and receive documents electronically. It's a matter of fact that you can also send preserved PDF documents with ease. But you must be cautious while attaching large PDFs or any other documents in Gmail. There are some limitations to using Gmail; with proper guidance, it can be easier.

In this article, we will discuss how to send PDFs through Gmail and troubleshoot PDF attachment issues. Bid farewell to the limitations and begin sharing your files effortlessly.

How to Send PDF Through Gmail

Sending documents via Gmail is a pretty straightforward process. Gmail offers a convenient and widely-used method for sharing important files. Whether it's business reports, academic papers, or personal documents, Gmail provides a user-friendly platform to transmit PDFs efficiently and securely.

You wouldn't need another individual to do so. Following our guide, you can ensure that your PDF attachments reach their intended destination securely and reliably.

Step 1: To initiate the process of sending a PDF via Gmail, start by composing a fresh email. After clicking the "Compose" button at the left navigation bar, you'll see a dialogue screen at the bottom of the page.

Step 2: Now, click on the attachment icon, a paperclip symbol, near the "Send" button. A new dialog box will pop up and ask you to choose the PDF file from your system. Navigate to the location where your PDF file is saved on your computer, select it, and click "Open" to attach it to the email.

Step 3: Double-click the recipient email address and other stuff as well. Once everything is checked and clear, click the "Send" button, and Gmail will initiate the delivery process. That's how easy to attach a PDF or any other document within a few clicks.

How to Fix Gmail Can't Attach PDF File Troubleshooting?

As you already know, Gmail is one of the fast and reliable email service providers you can rely on. No matter how significant Gmail's market presence is, it is not exempt from exceptions. While sending PDF documents, you may face attachment issues in Gmail.

Before you start troubleshooting attachment failed issues in Gmail, it's essential to know why this problem can occur.

Here are a few potential explanations for why you are unable to attach PDF files in Gmail:

  • While Gmail is compatible with a wide range of file formats, specific uncommon or restricted formats might not be eligible for attachment.
  • It's possible that the ability to attach files in Gmail can be blocked by a firewall or proxy server.
  • Unreliable or sluggish internet connections can interfere with the process of attaching files, resulting in failures.
  • When your Gmail storage reaches its maximum capacity, you cannot attach more files until you create space by freeing up storage.
  • One more possible explanation for the inability to attach files in Gmail is that your web browser doesn't support the email service. For the optimal experience, using supported browsers such as Edge, Chrome, Safari, or Firefox is recommended.

These are the most common errors you can face while attaching a PDF file in Gmail. Anyone can have these types of errors, and believe us, these types of errors can be easily fixed—even though you can also set them by yourself.

Fix 1: Confirm Compatible File Formats

File compatibility can be the reason why you are unable to attach files in Gmail. Generally, all document-related formats are compatible with Gmail, but some files are blocked by Gmail, including .apk, .exe, hta, .img, .ins, .iso, .isp, .jar, .jnlp, .js, .jse, etc.

Fix 2: Disable Your Firewall

If the Firewall is causing the attachment problem, disabling it will do the job for you:

  • To open the Run dialog box, press the "Windows Key+R" combination on your keyboard.
  • Once the Run dialog box appears, type "firewall.cpl" (without quotation marks) and press Enter. Next, navigate to the left-pane menu and select the option "Turn Windows Defender Firewall on or off."
  • Under the Domain, Private, and Public Network Settings, choose the option labelled "Turn off Windows Defender Firewall" and hit "Ok."

Fix 3: Turn Off Your Proxy Server

If your proxy server is on, you may also face the same problem as an on-firewall:

  • In the search bar, enter "Internet options" (without quotation marks), and select Internet Options from the displayed results. Proceed to the Connections tab and click on "LAN Settings."
  • In the Local Area Network (LAN) Settings window, uncheck the box next to the option "Use a proxy server for your LAN" and hit "Ok" to apply the changes.

Fix 4: Keep Web Brower Update

Sometimes the older version of your web browser misbehaves quite a bit and can cause problems like page loading errors etc. Make sure to keep your web browser up to date with the latest version.

Fix 5: Monitor Your Gmail Storage

Always keep an eye on your Gmail storage. If your Gmail storage is full, then you might not be able to attach files or receive emails. Free up some storage or buy more storage to increase your storage capacity.

A Good Way to Avoid PDF Attachment Problems in Gmail

There's another thing that matters; you cannot attach PDF files larger than 25MB. Gmail only allows files to attach that are less than 25MB. Don't worry; there always be a solution to every problem. To defy the attachments odds, you need to use the following two methods to overcome the file size problems:

Method 1: Compress & Reduce File Size before Sending

If you have a large PDF file exceeding the size limit against Gmail policy, then it's best to reduce the file size by compressing. UPDF would be the best choice for file compression and other editing stuff. No matter how big the file size is, UPDF gives quality results even after the file compression. Download it to start reducing file size now.

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To compress a PDF file using UPDF:

Step 1: Start by either dragging and dropping the desired PDF file onto UPDF or clicking the "Open File" button to import the file.

Step 2: Once the file is opened, locate the "Save as Other" icon on the page's far-right side. Click on it to reveal various options, and choose "Reduce File Size."

Step 3: Now, you can select the desired document quality for compressing the PDF. If you prefer a significantly smaller file size, opt for "Low." Alternatively, if you wish to compress the file to a lesser extent, you can choose "Medium" or "High." The compression level will vary based on the quality you select.

Step 4: Finally, click "Save As" to complete the compression process.

Method 2: Share the Large PDF via a Link

If you prefer not to compress your PDF file and send it in its original form, then sharing the file link directly would be the best choice. Another benefit of sharing a live link is that your documents will avoid layout complexities.

Here are the step-by-step instructions on how to send the PDF link using UPDF:

Step 1: Begin by opening the PDF file that you wish to share using a link. Look for the button labeled "Share this file with others" situated on the right side of the page.

Step 2: In the subsequent window, you will find an option titled "Share a Link." Click on it and then select "Create."

Step 3: Your document link has now been generated. Copy the link and share it with anyone and anywhere you desire.

A Dedicated PDF Editor for You

UPDF is a feature-rich PDF editor that offers a range of impressive functionalities. It surpasses the capabilities of a typical PDF reader by providing various additional features. Notably, UPDF is compatible with multiple platforms, including macOS, Windows, iOS, and Android. Its extensive array of features makes it a reliable and versatile tool for PDF editing, catering to the needs of users across various platforms. Download it today to discover the features.

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Key Features of UPDF Editor:

  • Efficient Page Addition/Deletion: UPDF empowers users to make swift modifications to their PDFs. Adding or removing unwanted pages from a PDF is easily accomplished with just a single click.
  • Edit PDFs: UPDF enables comprehensive editing of all content within a PDF document. This includes the ability to manipulate text and images by inserting, deleting, editing, copying, cutting, pasting, and rotating them with ease.
  • Annotate PDFs: Utilizing its annotating tool, UPDF allows users to apply markups to their PDFs. The marking feature encompasses options such as text highlighting, underlining, adding comments, inserting text boxes, checkboxes, shapes, signatures, and much more.
  • OCR Technology: Optical Character Recognition (OCR) allows you to digitize static documents and transform them into an editable format through scanning.
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Why Send PDF to Email as an Attachment?

Sending PDFs to email as an attachment has several advantages and reasons for choosing this method:

  • Compatibility: As we know, PDF is a universal format that works on every operating system present today. Anyone who receives via email can easily access every content without any compatibility issues.
  • Document Preservation: PDF files preserve the formatting, fonts, and layout of the original document, ensuring that the recipient sees it exactly as intended.
  • Security and Privacy: When sending sensitive or confidential information, attaching a PDF to an email provides an added layer of security. You can password-protect the PDF file or encrypt it, ensuring that only the intended recipient can access its contents.

FAQs on Sending PDFs in Gmail

Does Gmail Support Send PDF Files?

Yes, you can attach and send PDF files (within 25MB) through Gmail. Files that are blocked by Gmail, including .apk, .exe, hta, .img, .ins, .iso, .isp, .jar, .jnlp, .js, .jse, etc.

How do I Find PDFs in Gmail?

You can easily find PDFs in your Gmail inbox. To locate all PDF files in your email inbox, simply enter "filename:pdf" into the search field.

Why can't I attach a PDF in Gmail?

Various factors could prevent your PDF file from attaching, such as constraints on file size, an unreliable or sluggish internet connection, incompatible file name or format, complications with an email client or server, limitations due to document security settings, and firewall configurations.


Sending PDF files via Gmail is pretty straightforward. Just a few clicks and bingo; your file is good to go. But if you don't follow the constraints set by Gmail, you may face a huge setback as well, like file size limitations and compatibility issues. We've tried our best to guide you on how to send PDFs through Gmail and had a glance at other attachment problems. And don't underestimate the contribution of UPDF in compressing large PDF files and making them shareable via Gmail. Download it now to solve the problems.

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