PDF TOOLS COMPLETE GUIDE
Work with PDFs securely in your browser: view metadata, merge documents, and convert images to PDF—no uploads required.
Author: Jobin Blancaflor
PDF is the universal document format for sharing files that need to look the same everywhere. But PDF tools often require expensive software or sketchy websites that upload your documents to unknown servers. Armytool provides essential PDF utilities that run entirely in your browser—your documents never leave your device.
1. PDF Info Viewer
Display metadata and properties from any PDF file instantly. Understand what information is embedded in your documents.
Metadata Displayed
- Title – Document title (if set)
- Author – Creator name
- Subject – Document subject/description
- Keywords – Search keywords
- Creator – Application that created the PDF
- Producer – PDF conversion software
- Creation date – When the document was created
- Modification date – Last modified timestamp
- Page count – Total number of pages
- File size – Size in bytes/KB/MB
- PDF version – PDF specification version
Why PDF Metadata Matters
- SEO – Search engines read PDF metadata for indexing
- Accessibility – Screen readers use title and language info
- Organization – Metadata helps categorize documents
- Privacy – Metadata can expose author names, software versions, revision history
Privacy tip: Before sharing PDFs publicly, check metadata for sensitive information like author names or internal paths. Some organizations require metadata scrubbing for compliance.
Use Cases
- Verify document authenticity – Check creation date and author
- Troubleshoot PDF issues – Identify PDF version compatibility
- Batch organize files – Extract metadata for cataloging
- Privacy audit – Find exposed information before publishing
2. Image to PDF Converter
Combine one or more images into a single downloadable PDF document. Perfect for creating photo albums, scan compilations, or document submissions.
Features
- Multi-image support – Add unlimited images
- Drag-and-drop reordering – Arrange pages in any order
- Page sizing options – A4, Letter, or fit to image
- Orientation control – Portrait or landscape per page
- Instant download – No server processing, no wait times
Supported Image Formats
- JPG/JPEG – Photographs and scanned documents
- PNG – Graphics with transparency support
- WebP – Modern compressed format
- GIF – Simple graphics (first frame only)
Common Use Cases
- Document scanning – Photos of each page → single PDF
- Photo albums – Event photos organized in one file
- Receipt compilation – Expense reports with receipt images
- Portfolio creation – Design work presented as PDF
- Form submissions – Screenshots combined for support tickets
Workflow tip: For best results, ensure all images have similar orientation before combining. Mix portrait and landscape pages only when necessary.
3. PDF Merger Instructions
Learn how to merge multiple PDF files into a single document using browser-native capabilities and free tools.
Why Merge PDFs?
- Combine chapters – Merge separately written sections
- Append attachments – Add supporting documents
- Create compilations – Multiple reports in one file
- Consolidate scans – Multi-page documents from single-page scans
Browser-Based Merging Options
Modern browsers have built-in PDF capabilities:
- Print to PDF – Open PDFs in browser, print to PDF
- PDF extensions – Browser extensions for merging
- Native apps – Preview (Mac), Edge (Windows)
Step-by-Step: Print to PDF Method
- Open first PDF in browser
- Press Ctrl+P (Cmd+P on Mac)
- Select "Save as PDF" as destination
- Save with new name
- Repeat for additional PDFs
- Use Image to PDF tool to combine all outputs
Note: For complex merging needs, dedicated PDF software or command-line tools like pdfunite (Linux) or qpdf (cross-platform) provide more control.
Workflow Examples
Expense Report Submission
- Take photos of all receipts
- Use Image to PDF to combine into one document
- Check PDF Info to verify page count
- Submit single PDF to accounting
Academic Paper Submission
- Write main paper, save as PDF
- Export supplementary data as PDF
- Combine using merger method
- Verify metadata shows correct author
Client Deliverable Package
- Export report sections as individual PDFs
- Merge all sections in correct order
- Add cover page image at beginning
- Check final PDF metadata before sending
Security & Privacy
Unlike online PDF tools that require uploading your documents, Armytool processes everything locally:
- No uploads – Files stay on your device
- No storage – Nothing saved on servers
- No tracking – No account required
- No watermarks – Clean output every time
- No size limits – Limited only by browser memory
Important: For sensitive documents (legal, medical, financial), always use tools that process locally. Never upload confidential PDFs to unknown websites.
PDF Best Practices
Before Sharing PDFs
- Check metadata for exposed information
- Verify page count matches expectations
- Ensure all images are properly oriented
- Test that the PDF opens correctly
File Size Optimization
- Compress images before adding to PDF
- Use appropriate resolution (150 DPI for screen, 300 DPI for print)
- Remove unnecessary pages
- Consider splitting large files
Frequently Asked Questions
What's the maximum file size for PDF processing?
Limited by browser memory. Most modern browsers handle files up to several hundred MB. For larger files, consider splitting first.
Can I edit PDF text with these tools?
No, Armytool focuses on viewing metadata and combining documents. For text editing, use dedicated PDF editors.
Are the generated PDFs print-ready?
Yes, Image to PDF creates standard PDFs suitable for printing. For professional print shops, confirm their specific requirements.
Can I extract images from PDFs?
Not directly in Armytool. Use screenshot tools or dedicated PDF extractors for that purpose.