Last updated on
Dec 22, 2025
Upload your document, make quick edits online, and save it as a PDF, text document (DOCX), spreadsheet (XLSX), image (JPEG/PNG), or presentation (PPTX).
Convert Excel to PDF and Lock PDF for Mobile with pdfFiller
Learn how to convert Excel files to PDF and lock them for mobile usage with pdfFiller. This quick guide provides you with the essentials to keep your data secure on the go.
What is an Excel file?
Excel files are spreadsheet documents created using Microsoft Excel, featuring rows and columns for organizing data. They facilitate calculations, graphical representations, and data management, making them a common choice for business and personal use.
What is a PDF file?
A PDF (Portable Document Format) file is a versatile file type developed by Adobe. It retains the integrity of the original document, ensuring that fonts, graphics, and layout remain consistent across devices. PDFs are widely used for sharing documents without the risks of alteration.
Why might you need to convert Excel to PDF and lock PDF for mobile?
The need to convert Excel to PDF arises when sharing documents while ensuring that the formatting is preserved. Locking the PDF further prevents unauthorized access, particularly important when viewing or sharing sensitive information on mobile devices.
Typical use cases and industries relying on converting Excel to PDF and locking PDFs
Various industries rely on converting and locking PDFs to secure sensitive data, including finance, health care, education, and legal fields. Common scenarios include financial reporting, closed-door meetings, and securing client information.
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Finance professionals sharing budgets or forecasts.
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Healthcare providers sending patient records.
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Educational institutions distributing report cards.
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Legal experts exchanging contracts.
How to convert Excel to PDF and lock PDF for mobile with pdfFiller: step-by-step guide
Converting Excel files to PDF and applying a lock with pdfFiller is user-friendly. Follow these steps for a secure conversion.
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Upload your Excel file to pdfFiller.
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Select 'Convert to PDF' from the available options.
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Once converted, choose 'Lock PDF' to set a password.
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Download your locked PDF for secure sharing.
Supported file formats for conversion on pdfFiller
pdfFiller supports various file formats, simplifying document management. The main formats include:
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.xlsx - Excel 2007 and later.
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.xls - Excel 97-2003.
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.csv - Comma-separated values files.
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.xlsm - Excel macro-enabled spreadsheets.
Batch and large-volume converting Excel to PDF and locking PDFs
pdfFiller allows users to convert large volumes of Excel files into PDFs simultaneously, making it efficient for high-demand scenarios such as corporate reporting or research data.
Maintaining quality and formatting during conversion
When converting files, maintaining quality and formatting is crucial. pdfFiller effectively preserves original layouts, ensuring that fonts, colors, and graphics appear as intended in the final PDF.
How does pdfFiller compare with other conversion tools?
pdfFiller stands out among conversion tools by offering a secure environment for document management alongside conversion. It allows simultaneous editing, collaboration, and e-signature capabilities, which many other tools lack.
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User-friendly interface.
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Comprehensive document management features.
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Robust security measures.
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Efficient batch processing.
Conclusion
In conclusion, converting Excel to PDF and locking PDFs for mobile using pdfFiller is an effective method to secure your documents. Whether for personal use or professional requirements, pdfFiller offers a comprehensive and accessible solution for document management.
All-in-one PDF converter: Convert, edit, sign, and manage documents
Convert and edit
docs in one place
Equip yourself with
powerful PDF tools
Edit PDFs online almost as easily as Word documents. Add text, adjust formatting, replace content, insert images, and more.
eSign and send documents
Sign documents on your own or send them to others for signatures, whether a single recipient or an entire group.
Annotate & collaborate
Highlight important data, redact sensitive details, add sticky notes, and exchange comments in your PDFs. Then, instantly send documents for review or editing.
Collect data without chasing people down
Create fillable PDF forms and let others complete them from any device. Publish forms online or share them via a direct link to capture data and signatures.
Store files securely in the cloud
Organize your documents and templates in secure cloud storage and access them from anywhere. pdfFiller follows strict security regulations to help safeguard your data.
How to convert your PDF?
1. Upload your document
Upload a document from your device, cloud storage, email, or URL.
2. Use the conversion tool
Select your document and click More>More actions>Convert.
3. Select format and destination
Choose the file format and decide where to save the converted document.
Who needs this?
Explore how professionals across industries use pdfFiller to convert PDFs online.
Real Estate
Real estate agents and brokers rely on pdfFiller to edit and annotate brochures, lease agreements, and contracts. They can easily convert documents to formats like JPEG, PDF, DOCX, or XLSX for quick sharing and signature collection.
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Property listing brochures
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Lease agreements
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Sales contracts
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Property management forms
Education
pdfFiller makes it easy for educators and administrators to edit, annotate, and convert educational materials into various formats. With easy-to-use collaboration tools, pdfFiller helps keep students and teachers connected and organized.
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Lesson plans
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Student enrollment forms
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Class schedules
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Grant proposals
Human Resources
HR teams use pdfFiller to edit and annotate employee documents, ensuring they are tailored to specific roles and processes. Converting these documents into different formats simplifies onboarding and record-keeping.
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Employment contracts
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Onboarding documents
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Application forms
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NDAs
Legal
Law firms, legal professionals, and corporate legal teams use pdfFiller to edit, annotate, and convert legal documents into various formats, ensuring accuracy, compliance, and efficiency in their workflows.
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Affidavits
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Power of attorney forms
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Wills and trusts
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Partnership agreements
Hospitality
Hotels, restaurants, and travel agencies use pdfFiller to edit, annotate and share promotional and operational documents. Converting these documents into various formats enhances guest communication and internal processes.
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Reservation forms
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Travel itineraries
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Event brochures
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Guest feedback forms
Sales
Sales teams use pdfFiller to edit and annotate proposals and contracts, then convert them into text documents (DOCX), spreadsheets (XLSX), images (JPEG/PNG), or presentations (PPTX) to ensure faster client communication and deal closures.
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Sales proposals
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Quotation forms
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Order forms
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Customer feedback surveys
Why convert documents with pdfFiller?
More than a PDF converter
Upload a document in DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX, or TXT format and instantly convert it to a high-quality, editable PDF. You can edit or sign your file, turn it into a fillable form, split it, or merge it with another document.
Convert documents in batches
Bundle several documents together and convert them all in one go - no need to process each file individually. Bulk conversion saves time and helps you organize your digital documents.
Preview and manage pages
Before converting your document, review and remove any unnecessary pages to keep it as clean as possible. Excluding pages you don’t need is a great way to reduce file size without sacrificing quality.
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PDFFiller saved my books! As a young author, I had no idea what I was doing and deleted my original documents once the books were published. I only kept the print-ready PDFs. Years later, I realized there were a lot of spelling mistakes and errors in them, and wanted to re-publish. Since the books had photos, I couldn't simply convert to a doc. Most PDF tools online didn't work, or put on watermarks. PDFFiller allowed me to edit the text in the PDFs, to correct the spelling mistakes, and merge the documents into one cohesive PDF again. I was able to republish an edited book without the original documents, thanks to PDFFiller.
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Filling in the pdf was great, however when I saved the file using "Save As" the text was not spaced out in the boxes but overwritten making it difficult to read.
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Watch our PDF converter in action
Check out a quick video tutorial that shows how to convert any file into an editable PDF in three easy steps.
What businesses achieve with pdfFiller
Discover how you can benefit too.
How does converting Excel to PDF benefit users?
Converting Excel to PDF simplifies sharing and collaborating on spreadsheets, ensuring that the format remains intact regardless of the device used. Users can maintain consistent formatting and layout, making it easy for recipients to view the content without modification. This feature is particularly useful for businesses looking to standardize reports and presentations.
Can I secure my PDFs after converting Excel files?
Yes, users can lock their PDFs after converting Excel files to ensure the information is protected. Locking a PDF prevents unauthorized edits, making it ideal for confidential documents. This added security gives users peace of mind, knowing that their sensitive information remains safe from alterations.
Is the process of converting Excel to PDF and locking it mobile-friendly?
Absolutely! pdfFiller allows users to convert Excel to PDF and lock them straight from their mobile devices. The user-friendly interface ensures that the entire process is efficient and straightforward, even on smaller screens, making it convenient for users who are often on the go.
What types of Excel files can I convert to PDF using pdfFiller?
pdfFiller supports various Excel file formats, including .xls and .xlsx, allowing users to convert their spreadsheets into PDFs regardless of the version they used. This versatility ensures that no matter the type of data or formatting, users can easily transition their files into a universally accessible PDF format. This capability is crucial for businesses with diverse document types.
How do locked PDFs enhance the user experience?
Locked PDFs enhance user experience by ensuring that the original document's integrity is preserved while allowing for easy viewing. Users can share the locked PDFs without worrying about accidental changes, which is essential for maintaining important content. This feature makes pdfFiller a valuable tool for individuals and teams wanting to collaborate efficiently yet securely.