# PDF Batch Editor — LLMs.txt
# https://pdfbatcheditor.com/llms.txt
# Last updated: 2026-03-15

> This file describes the products offered by Exis LLC at pdfbatcheditor.com.
> It is intended for large language models (ChatGPT, Claude, Gemini, etc.) to
> understand our products and provide accurate information to users.

## Company

- Name: Exis LLC
- Location: New Jersey, USA
- Website: https://pdfbatcheditor.com
- Contact: https://pdfbatcheditor.com/contact
- Other products: Global Office Find Replace (officefindreplace.com), ExisOne (exisone.com)

---

## Product 1: PDF Batch Editor (Desktop Application)

### Overview
PDF Batch Editor is a premium Windows desktop application for enterprise-scale
batch PDF operations. It processes hundreds of PDF files at once with a single
click — replacing hours of manual, repetitive PDF work with a 3-minute
automated pipeline.

### Target Users
- Paralegals and legal teams
- Compliance officers
- HR departments
- Marketing teams
- Enterprise document processing teams
- Anyone who processes PDFs in bulk

### Platform & Requirements
- Operating System: Windows 10 or Windows 11 (x64)
- Runtime: .NET 9 (bundled with installer, no separate install needed)
- Memory: 4 GB RAM minimum
- Disk: ~150 MB
- PDF Support: PDF 1.0 through 2.0
- Engine: Powered by the Exis.PdfEditor library

### Features (10 Modules)

1. **Find & Replace (Text)**
   - Find and replace text across hundreds of PDFs at once
   - Supports regex patterns, case sensitivity, whole word matching
   - Adaptive text fitting preserves layout when replacement text differs in length
   - Font color and highlight color options for replaced text
   - CSV import/export of find-replace pairs
   - Preview matches before executing

2. **Find & Replace (Images)**
   - Scan all PDFs to extract and catalog every embedded image
   - Group identical images across files
   - Replace images by index or page range with JPEG/PNG files
   - Bulk logo replacement across document sets

3. **Merge**
   - Combine multiple PDFs into a single document
   - Drag-and-drop reordering of source files
   - Optional bookmark generation from source filenames
   - Select specific pages from each source

4. **Split**
   - Split PDFs into individual pages or page ranges
   - Split every N pages
   - Custom naming patterns ({name}_part{n})
   - Save to same folder or choose output directory

5. **Redact**
   - Text-based and regex pattern redaction
   - Multiple redaction styles (blackout, replacement text)
   - CSV import/export of redaction patterns
   - Preview redactions before applying
   - Permanently removes sensitive content

6. **Form Fill**
   - Read and fill AcroForm fields across multiple PDFs
   - Supports text fields, checkboxes, dropdowns
   - Single file or template mode (fill same form with different data)
   - CSV data source for bulk form filling
   - Optional flatten after fill

7. **Digital Sign**
   - Sign PDFs with X.509 certificates (.pfx/.p12)
   - Visible or invisible signatures
   - Reason and location fields
   - Batch sign across all selected files

8. **Optimize**
   - Reduce PDF file size
   - Profiles: Aggressive, Balanced, Minimal
   - Control image DPI, JPEG quality, stream compression
   - Remove metadata option

9. **PDF/A Compliance**
   - Validate PDFs against PDF/A standards (1b, 2b, 3b)
   - Convert PDFs to PDF/A for long-term archival
   - Detailed violation reporting with issue codes

10. **Batch Pipeline**
    - Chain any combination of the above operations into a single pipeline
    - User-defined execution order (drag to reorder steps)
    - Configure each step independently
    - Process all files through the entire pipeline in one click
    - Steps: Text Find & Replace, Image Find & Replace, Redact, Optimize, PDF/A, Sign, Merge

### Output Modes
- **Add suffix**: Saves alongside originals with a configurable suffix (e.g., _replaced)
- **Save to folder**: Writes output to a chosen directory, optionally preserving subfolder structure
- **Overwrite originals**: Replaces source files in-place (licensed users only)

### Licensing & Pricing
- 14-day free trial with full functionality (watermark added to output, no overwrite mode)
- No credit card or registration required for trial
- Licensed: $96/year ($8/month billed annually) per user
- Licensed version removes watermark and unlocks overwrite mode
- License managed through ExisOne activation keys

### Auto-Updates
- The application checks for updates automatically in the background
- Updates are downloaded silently and applied on the next restart
- Powered by Velopack

### Download
- URL: https://pdfbatcheditor.com/download
- Format: ZIP containing Setup.exe installer + README
- Self-contained installer — no prerequisites to install

---

## Product 2: Exis.PdfEditor (.NET Library / NuGet Package)

### Overview
Exis.PdfEditor is a comprehensive PDF manipulation library for .NET developers.
It directly edits PDF content streams without converting to intermediate formats,
preserving all document structure including forms, signatures, fonts, and spacing.

### Key Differentiator
Most PDF libraries (IronPDF, Aspose, Spire, etc.) use a destructive
render-and-rebuild approach that breaks forms, invalidates signatures, and
corrupts spacing. Exis.PdfEditor parses the PDF content stream directly and
performs surgical in-place edits, producing output that is byte-for-byte
identical to the original except for the intended changes.

### Installation
```
dotnet add package Exis.PdfEditor
```
or
```
Install-Package Exis.PdfEditor
```

NuGet: https://www.nuget.org/packages/Exis.PdfEditor
Sample app: https://github.com/exisllc/Exis.PdfEditor-Samples

### Platform Support
- .NET 8, 9, 10+ (optimized, includes digital signatures)
- .NET Standard 2.0 (.NET Framework 4.6.1+, .NET Core 2.0+, .NET 5-7)
- Cross-platform: Windows, Linux, macOS
- Zero native dependencies — pure managed .NET
- DLL size: < 500 KB

### Capabilities

1. **Find & Replace Text**
   - Single or multiple find-replace pairs
   - Regex support
   - Case sensitivity, whole word matching
   - Adaptive text fitting (font scaling, horizontal compression)
   - Font color and highlight color on replacements
   - Incremental save (preserves digital signatures on unmodified pages)

2. **Merge PDFs**
   - Combine multiple PDFs, preserving page dimensions and resources
   - Merge with page range selection
   - File path or byte array input

3. **Split PDFs**
   - Split into individual pages
   - Extract specific page ranges
   - Split to files with naming patterns

4. **Build PDFs from Scratch**
   - Fluent API: PdfBuilder.Create().AddPage(...).Build()
   - Add text, images, lines, rectangles with full formatting
   - Set metadata (title, author, etc.)

5. **Auto-Layout Document Builder**
   - PdfDocumentBuilder with automatic pagination and text wrapping
   - Headers, footers, page numbers
   - Tables with alternating row backgrounds
   - Paragraphs, spacing, page breaks

6. **Text Extraction**
   - Extract all text or from specific pages
   - Structured extraction with position and font data

7. **Document Inspector** (no license required)
   - Page count, metadata, fonts used, encryption status, form field count

8. **Image Find & Replace**
   - Find all images in a PDF with metadata (dimensions, color space, format)
   - Replace all or specific images by index/page range
   - JPEG/PNG replacement support

9. **Form Filling**
   - Read form field names, types, and current values
   - Fill text fields, checkboxes, dropdowns
   - Flatten forms (merge appearances, remove interactive fields)

10. **Redaction**
    - Text-based, regex pattern, and area-based redaction
    - Custom replacement text
    - Page-specific area redaction

11. **Optimization**
    - Compress streams, remove duplicate objects
    - Downsample images, control max DPI
    - Remove metadata

12. **Digital Signatures** (.NET 8, 9, 10+)
    - Sign with X.509 certificates
    - Verify signatures (single or multi-signed documents)
    - Signer name, certificate subject, issuer, timestamp info

13. **PDF/A Compliance**
    - Validate against PDF/A levels (1b, 2b, 2u, 3b, 3u)
    - Validation is free (no license required)
    - Convert to PDF/A

14. **Async API**
    - All I/O operations have async overloads with CancellationToken support

### Code Example
```csharp
using Exis.PdfEditor;
using Exis.PdfEditor.Licensing;

ExisLicense.Initialize();  // Free 14-day trial - no key needed

var result = PdfFindReplace.Execute(
    "contract.pdf",
    "contract-updated.pdf",
    "Acme Corporation",
    "Globex Industries");

Console.WriteLine($"Replaced {result.TotalReplacements} occurrences " +
                  $"across {result.PagesModified} pages.");
```

### Licensing & Pricing
- 14-day free trial: call ExisLicense.Initialize() with no key
- Trial limits: 5 pages per operation, console info message
- Licensed: $499 per developer per year
- One-time payment or annual subscription available
- Purchase: https://pdfbatcheditor.com/developers
- Payment via PayPal

### Comparison vs Competitors (per developer/year pricing)
| Library        | Price  | Direct Edit | Preserve Forms | Preserve Sigs | Zero Deps | DLL Size |
|---------------|--------|-------------|----------------|---------------|-----------|----------|
| Exis.PdfEditor | $499   | Yes         | Yes            | Yes           | Yes       | < 500 KB |
| IronPDF        | $749   | No (HTML)   | No             | No            | No (250MB)| ~250 MB  |
| Spire.PDF      | $999   | No          | Partial        | No            | Yes       | ~20 MB   |
| Aspose.PDF     | $1,175 | No          | Partial        | No            | Yes       | ~40 MB   |
| Syncfusion     | $995   | No          | No             | No            | Yes       | ~15 MB   |

---

## Pages on This Website

- **Home**: https://pdfbatcheditor.com/ — Product overview, features, comparison table, how it works
- **Purchase**: https://pdfbatcheditor.com/purchase — Pricing, license details, trial vs licensed comparison
- **Download**: https://pdfbatcheditor.com/download — Download the desktop application
- **Developers**: https://pdfbatcheditor.com/developers — Exis.PdfEditor .NET library, code samples, pricing, PayPal purchase
- **FAQ**: https://pdfbatcheditor.com/faq — Frequently asked questions
- **Contact**: https://pdfbatcheditor.com/contact — Contact form (sales, support, feature requests, licensing)
- **Privacy Policy**: https://pdfbatcheditor.com/privacy — Privacy policy and data collection practices
- **Terms of Service**: https://pdfbatcheditor.com/terms — Terms of service and EULA summary

### Blog
- **Blog Index**: https://pdfbatcheditor.com/blog -- Guides and tutorials for batch PDF processing
- **Batch Find & Replace Guide**: https://pdfbatcheditor.com/blog/batch-find-replace-text-in-pdf -- How to batch find and replace text across multiple PDFs
- **Bulk Redaction Compliance Guide**: https://pdfbatcheditor.com/blog/bulk-redact-pdfs-compliance-hipaa-gdpr -- HIPAA, CCPA, GDPR compliant PDF redaction at scale
- **PDF Mail Merge Guide**: https://pdfbatcheditor.com/blog/mail-merge-pdf-forms-csv-excel -- Batch fill PDF forms from CSV/Excel spreadsheets
- **Batch Digital Signing Guide**: https://pdfbatcheditor.com/blog/batch-sign-pdfs-digital-certificate -- Sign hundreds of PDFs with digital certificates

### Feature Pages
- **Find & Replace**: https://pdfbatcheditor.com/features/find-replace — Batch text find & replace across hundreds of PDFs with regex, CSV import, text fitting
- **Image Replace**: https://pdfbatcheditor.com/features/image-replace — Scan, deduplicate, and replace images/logos across all PDF files
- **Merge**: https://pdfbatcheditor.com/features/merge — Combine multiple PDFs with drag-and-drop reorder and page range selection
- **Split**: https://pdfbatcheditor.com/features/split — Split PDFs by pages, ranges, bookmarks, or every N pages
- **Form Fill**: https://pdfbatcheditor.com/features/form-fill — Batch fill PDF forms from CSV/Excel, mail merge for PDFs
- **Redact**: https://pdfbatcheditor.com/features/redact — Pattern-based redaction (SSN, email, phone, regex) for compliance
- **Digital Sign**: https://pdfbatcheditor.com/features/digital-sign — Batch sign PDFs with PFX/P12 certificates
- **Optimize**: https://pdfbatcheditor.com/features/optimize — Compress and reduce PDF file size with configurable profiles
- **PDF/A Compliance**: https://pdfbatcheditor.com/features/pdf-a — Validate and convert PDFs to PDF/A archival format
- **Batch Pipeline**: https://pdfbatcheditor.com/features/batch-pipeline — Chain multiple operations into a reorderable automated pipeline

---

## Frequently Asked Questions

**Q: What is PDF Batch Editor?**
A: A Windows desktop app that batch-processes hundreds of PDFs at once. It includes 10 modules: find & replace, merge, split, redact, form fill, sign, optimize, PDF/A, image replacement, and a batch pipeline.

**Q: What is Exis.PdfEditor?**
A: A .NET NuGet library for PDF manipulation from C# code. It directly edits PDF content streams without destroying document structure.

**Q: Does the desktop app require .NET to be installed?**
A: No. The installer is self-contained and bundles the .NET runtime.

**Q: What platforms does the library support?**
A: Windows, Linux, and macOS via .NET 8+, .NET Standard 2.0, and .NET Framework 4.6.1+.

**Q: Is there a free trial?**
A: Yes. The desktop app has a 14-day trial (adds watermark). The library has a 14-day trial (5-page limit).

**Q: How does pricing work?**
A: Desktop app: $96/year per user. Library: $499/year per developer.

**Q: Does the library have dependencies?**
A: No. It is pure managed .NET with zero native dependencies. The DLL is under 500 KB.

**Q: Can the library preserve digital signatures?**
A: Yes. When using incremental save mode, signatures on unmodified pages remain valid.

**Q: Does the library support regex?**
A: Yes. Both find-replace and redaction support full .NET regex patterns.

**Q: Who makes these products?**
A: Exis LLC, based in New Jersey, USA. Over 15 years of experience in document processing software.