Add Formulas and Calculations in PDFs For Free

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Last updated on Sep 19, 2025

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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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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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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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What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
I sat down and began using it right away without any tutorial what so ever. It's just that easy. Looking forward to learning what else this program can do.
Elizabeth D
2017-01-03
Simply put, PDFFILLER has made my life a whole lot 'simpler'. I am no longer buried up to my eyeballs in paperwork (just up to my knees now! ha!) Since i began using PDFfiller, my desk is now, finally, Organized! Before PDFfiller - you couldnt even see the glass top on my computer desk., but now, since using PDFfiller, you can actually see every square inch of my desk! there isnt a single piece of paper 'waiting to be scanned', or filled out, so on and so forth. Which obviously has a huge impact on my ability to stay on track and stay focused! Needless to say I absolutely LOVE pdffiller! NO REGRETS!
jennifer b
2017-04-03
A very good and friendly in navigating the fields. Need improvement especially in the telephone number field and user address died of CMS 1500 of 2012 and UB04. Unable to include the three digits telephone area code. Address field too small to contain full address including zip codes
segun o
2018-06-18
I was very impressed with all the option that were readily available to me. The library was amazing, and aside from business I found things for my children, as well.
Leslie G
2018-12-18
The only difficulty I encountered was figuring out how to find subsequent forms. I worked it out -= probably not in the most expeditious way - but I will happily use the service in the future.
Ora R C
2019-03-05
PDF Filler Descriotion It has been wonderful from the online accessibility to the ease of computer use. The screen font was adjustable, so I like that it is non-discriminatory. This software is affordable, and saved me some job hunting in person. It allowed me to sign some paper stuff online. I o not like that this software left out the name of the company whose creator devoted it to. In addition, it leaves out some colors like blue and black from a police department.
Verified Reviewer
2020-03-24
I was freaking out that I couldn't save… I was freaking out that I couldn't save my work on a PDF for a scholarship app, but after finding this, I am very happy and calm.
BeccaClaire
2020-04-17
Experiencia en pdfFiller Mi experiencia con pdfFiller ha sido bastante positiva. Lo que más me ha gustado del software es su capacidad para crear y diseñar formularios de manera rápida y sencilla. Esto me ha ahorrado mucho tiempo al momento de completar trabajos y tareas para mis clases. Además, la automatización del proceso/flujo de trabajo también ha sido muy útil, ya que me permite organizar y enviar mis documentos de manera eficiente. Lo que más me ha gustado del software pdfFiller es la facilidad de creación y diseño de formularios, ya que me permite personalizar los formularios según mis necesidades y hacerlos más atractivos visualmente. Además, la automatización de procesos y flujos de trabajo me ha ayudado a ahorrar tiempo y aumentar mi productividad. Lo que menos me ha gustado del software pdfFiller es que a veces puede ser un poco difícil de usar para algunas personas menos familiarizadas con la tecnología. Aunque la interfaz es intuitiva, puede requerir un poco de tiempo para acostumbrarse a todas las funciones y opciones disponibles.
Henry M.
2023-01-26
Its been great. I am sorry to say I will not be able to do the full year as I needed a PDF on the emergency for some VA forms, but you saved my bacon for a low price... so long as the unsubscribing goes smooth. Thanks again.
Cody A S
2022-10-18

Calculations in a PDF

When you are a student, banker, accountant or actuary, you spend much time on different calculations. The Add Fillable Fields feature allows you to insert different types of fields into your PDF or Word document and do complex calculations. Transform any document or form with smart digital fields using the drag and drop wizard.
To get started, upload the document to your pdfFiller account and open it in the Editor.
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To create fillable fields for formula, click on the Add Fillable Fields tab on the right.
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When the tab opens, you see different types of fields that you can add to your document. To add the Formula Field, select Formula.
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Drag and drop the selected field anywhere on the document.
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Open the Formula Builder at the top of your document. It will help you calculate a value based on number fields in the document.
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Resize the field by dragging its corners or edges. Use the text formatting tools to preset the field’s text format including the font, size, color and alignment of text. Change the format of the calculated value by clicking Format on the right. Click the Save orange button in the top right corner to save the changes.
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Once you’ve clicked Save, you will see the calculated value on the place where you’ve dragged and dropped the field.
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To delete a fillable field, click on the trash can icon above it. You can customize any fillable field. Click Advanced in the right pane and select the options you need.
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After you’ve added the Formula Field to your document, you can edit your document, sign or send it to be signed and share. When you’ve finished, click the Done orange button in the top right corner.

How do I do calculations in a PDF?

01
Upload the document to your pdfFiller account and open it in the Editor.
02
Click on the Add Fillable Fields tab on the right.
03
Select Formula.
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Open the Formula Builder to calculate a value.
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Click Save.
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Click Done.

Add Formulas and Calculations in PDFs Feature

Welcome to the new Add Formulas and Calculations in PDFs feature! Say goodbye to manual calculations and let this feature do the work for you.

Key Features:

Easily add formulas and calculations to your PDF documents
Support for a wide range of mathematical functions
Customize formulas to suit your specific needs

Potential Use Cases and Benefits:

Create professional-looking invoices with automatic calculations
Generate accurate financial reports with ease
Speed up data analysis by automating calculations

Solving your problem has never been easier with this feature. Take the hassle out of crunching numbers and let Add Formulas and Calculations in PDFs streamline your workflow.

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How to Add Formulas and Calculations in PDFs

To make the most out of the Add Formulas and Calculations in PDFs feature in pdfFiller, follow these simple steps:

01
Open the PDF document you want to add formulas and calculations to.
02
Click on the 'Tools' tab located at the top of the page.
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From the dropdown menu, select 'Formulas and Calculations'.
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A sidebar will appear on the right side of the screen with various options.
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Click on the 'Add Formula' button to start creating a new formula.
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In the formula editor, you can enter mathematical expressions using numbers, operators, and functions.
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To reference fields in your PDF, simply click on the 'Insert Field' button and select the desired field.
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You can also use the 'Insert Function' button to add pre-defined functions to your formula.
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Once you have entered your formula, click on the 'Save' button to apply it to the selected field.
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To edit or delete a formula, click on the respective buttons next to the formula in the sidebar.
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You can add multiple formulas to different fields in your PDF document.
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To preview the calculated values, click on the 'Preview' button in the sidebar.
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If you need to make any changes, simply go back to the formula editor and modify the formula.
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Once you are satisfied with the formulas and calculations, click on the 'Done' button to save your changes.

By following these steps, you can easily add formulas and calculations to your PDFs using pdfFiller's convenient feature.

For pdfFiller’s FAQs

Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
Contact Support
pdfFiller is an online PDF editing platform. With pdfFiller, you can search for, edit, store, print and export PDF documents online without downloading and installing any software. pdfFiller also allows you to access and edit PDF documents from any device anytime.
Yes. You can easily do calculations in a PDF by adding a formula field to your document. Calculate a value based on number fields in the document in minutes.

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