Include Letter For Free

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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
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Discover the simplicity of processing PDFs online

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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
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Every PDF tool you need to get documents
done paper-free

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Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
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Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
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Organize & convert PDFs

Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
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Collect data and approvals

Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
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Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
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Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

Customer trust by the numbers

64M+
users worldwide
4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
Join 64+ million people using paperless workflows to drive productivity and cut costs

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
I may be an idiot but it isn't the most intuitive experience I've had. I have been under pressure to produce so that may have something to do with it.
Anonymous Customer
2014-12-10
After being turned off by the original warning about not being able to submit the forms to the government, which I think is CONFUSING, I kept digging in and found that once you pay they are acceptable. Now LOVE IT
Anonymous Customer
2015-01-29
Great!! Saves me lots of time where I would have to find the form print it out and then type the information. The only thing that is a problem is the instructions within the form itself. I feel the instructions throughout the form should not be on the printout itself.
Siquetta P
2015-09-10
Very convenient the only thing I would like is to have different offers for a fax number. I barely use faxes and I would love to use this service. Can you have another fax payment offer?
Melanie S
2019-07-22
What do you like best?
The ability to create a document, upload a document, search and find document files, edit, and then fax or email to anyone anywhere right from the convenience of your laptop anywhere in the world. All documents created are saved in your account for return access, and activities (fax, email and receipts for delivery) are also recorded and saved.
What do you dislike?
So far I have not discovered something I do not like. I have uploaded, created, searched for online documents to use, and both faxed and e-mailed documents without an issue.
What problems are you solving with the product? What benefits have you realized?
Can work and send from home, work, on the road. No need to hunt for a fax service / company; no need to leave where I am at to go fax a document; can work and send documents in the middle of the night right from home or while on the road; have been able to search and find online documents and upload into account for editing use; easy to share documents via PDFiller; you can send documents to anyone with an e-mail address - your recipient does not need to leave their laptop either!
Judy Duncan
2019-09-01
Needed to attach a photo to a PDF and… Needed to attach a photo to a PDF and found PDF Filler such an easy and quick site to use to satisfy my needs. My acting resume now looks even better with a headshot!
Lenny Turner
2020-04-04
What do you like best? The ability to merge and delete pages from pdf documents, and literally edit any pdf document I need to edit! PDF Filler has saved my life many times! What do you dislike? Nothing, I mean it! Absolutely nothing. Mayyyyyyybe the ability to split documents, but really the other options pdfFiller has let me to in that aspect have been amazing. Recommendations to others considering the product: I have none, it's amazing!! What problems are you solving with the product? What benefits have you realized? I'm merging, I'm deleting unwanted pages, I'm edited...I'm doing all the great things! I am absolutely more productive as a result of pdfFiller.
Sandra Crawford
2022-02-08
I had to type information into a PDF… I had to type information into a PDF document and I couldn't do it in Windows 10; I found pdf.filler.com and was able to type in my information easily!
Ana L.
2021-02-28
Easy to use and very convenient to have for filling out forms and other documents that I would normally need to print out before filling in my information. I really enjoy the ease of this tool.
Courtney
2020-05-24

Instructions and Help about Include Letter For Free

Include Letter: edit PDFs from anywhere

When moving your paperwork online, it's important to have the PDF editor that meets your requirements.

Even if you hadn't used PDF file type for your documents before, you can switch anytime — it's simple to convert any format into PDF. You can also create just one PDF file to replace multiple files of different formats. It allows you to create presentations and reports that are both detailed and easy-to-read.

Though many solutions allows PDF editing, it’s difficult to find one that covers all the features available on the market, at a reasonable cost.

Use pdfFiller to annotate documents, edit and convert into other formats; fill them out and add a digital signature, or send out to others. All you need is in just one browser tab. You don’t have to install any applications.

Use one of the methods below to upload your document template and start editing:

01
Drag and drop a document from your device.
02
Open the Enter URL tab and insert the path to your sample.
03
Find the form you need from the catalog using the search field.
04
Upload a document from the cloud storage (Google Drive, Box, Dropbox, One Drive and others).
05
Browse the Legal library.

Once the document is uploaded, it’s saved in the cloud and can be found in the “My Documents” folder.

Use editing features such as typing text, annotating, blacking out and highlighting. Add images to your PDF and edit its layout. Change a form’s page order. Add fillable fields and send to sign. Ask other people to complete the fields and request an attachment. Once a document is completed, download it to your device or save it to the third-party integration cloud.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

Video Review on How to Include Letter

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025