◆ Adobe Acrobat

When you need to combine

Merge files into one PDF, or split one apart. These are the workflows people run in Acrobat to combine, the busiest ones first — each one with ready prompts you can copy.

276workflows
297real tasks
533ready prompts

The workflows

276 in all · busiest first
combineAdd Bates numbering with bookmarks per file in batch sets2 tasks → combineApply Bates numbering as part of a document workflow integra2 tasks → combineApply Bates numbering to mixed file types2 tasks → combineApply Bates numbering with simultaneous file size reduction2 tasks → combineAutomate Bates numbering using Acrobat JavaScript or API2 tasks → combineCombine Signed FilesThe client signed the order form and the separate SOW. Combine the signed PDFs into one…2 tasks → combineCompare PDFs programmatically using Adobe PDF Services API2 tasks → combineCompare PDFs using third-party or open-source tools2 tasks → combineCompare two PDF files side-by-side visually2 tasks → combineCompare two secured or password-protected PDFs2 tasks → combineCompile Contract PackageCompile the negotiated documents into one contract package for [client=Horizon] so legal and…2 tasks → combineEnforce Bates numbering policies and permissions for complia2 tasks → combineEnforce or restrict access to Compare Files feature via admi2 tasks → combineHighlight Dreamweaver DiffsI have two HTML files for the marketing microsite — [file=index_v2.html] and…2 tasks → combineInsert additional metadata with Bates numbering2 tasks → combineIntegrate PDF comparison into automated document workflows2 tasks → combineRemove or redact Bates numbers from PDFs2 tasks → combineSplit PDF FilesI have three invoices and the original signed [po] that need to travel as a single file to the…2 tasks →

Questions people actually ask

with the jobs and tasks they touch

To merge multiple PDF files into one PDF, use the Combine Files tool in Adobe Acrobat. This is useful if you need all your documents in a single file for sharing or archiving. Many Production Assistants do this when preparing meeting materials.

You can also arrange the order of files before merging to keep your pages organized.

  1. Open Adobe Acrobat and choose Tools > Combine Files.
  2. Click Add Files and select the PDFs you want to merge.
  3. Arrange the files in your preferred order.
  4. Click Combine to merge them into one PDF.
  5. Save the new PDF file.

In Acrobat, 'merge' and 'combine' usually mean putting several files into one PDF. Both actions use the Combine Files tool, but you might merge only PDFs, while combining lets you add other file types like images or Word documents.

For most users, both terms lead to the same result—a single PDF file containing all your selected content.

ActionInput TypesResult
MergePDF files onlySingle PDF
CombinePDFs, Word, imagesSingle PDF
Merge Signed FilesSigned PDFsOne signed PDF

Yes, splitting a PDF is easy in Acrobat. This is helpful if you need to share or manage only parts of a large file. For example, Cartographers often split construction drawing sets to send specific sections.

You control page ranges or number of files created.

  1. Open your PDF in Adobe Acrobat.
  2. Choose Tools > Organize Pages.
  3. Click Split and select how you want to split (by number of pages, file size, or top-level bookmarks).
  4. Set your split options and click Split.
  5. Save the new PDF files.

You can add Bates numbering to combined PDFs in Acrobat, which is useful for legal or business documents. Quality Control Analyst Biotech often add Bates numbers to track contract packets.

Apply Bates Numbering after merging for consistent page numbering.

  1. Combine your files first using Combine Files.
  2. Go to Tools > Edit PDF > More > Bates Numbering.
  3. Choose Add and select your combined PDF.
  4. Set the numbering format and location.
  5. Click OK to apply and save.

If Acrobat can't combine your files, check if any file is password-protected or corrupted. Remove those files and try again. Make sure all files are supported types (PDF, Word, etc.).

Try opening the problematic file in Acrobat and resaving it as a new PDF before combining.

  • Check for password-protected or damaged files
  • Remove unsupported file types
  • Resave the file in Acrobat
  • Combine fewer files at once
  • Update your Acrobat version

You can drag and drop files in the Combine Files window to set the order before merging. This is helpful when you need documents in a specific sequence, such as assembling approved invoice evidence.

You can also rearrange pages after combining using Organize Pages.

  1. Open Tools > Combine Files in Acrobat.
  2. Add all files you want to merge.
  3. Drag files to arrange them in the desired order.
  4. Click Combine to merge in this order.
  5. Save the final PDF.

Acrobat Pro has more robust tools for combining many files compared to Acrobat Standard or Acrobat Reader. Large jobs, like compiling receipts, work best with Acrobat Pro due to batch processing and advanced options.

Reader can only view and not combine files.

VersionCombine FilesBest For
Acrobat ProYes, advanced optionsMany large files
Acrobat StandardYes, basic optionsSmall sets
Acrobat ReaderNoViewing only

You can add scanned files and regular PDFs at the same time using the Combine Files tool. Acrobat converts images to PDF format automatically. Political Scientists often merge scanned research with digital documents for reviews.

Make sure scanned documents are clear for best results.

  1. Go to Tools > Combine Files in Acrobat.
  2. Click Add Files and select both scanned images (JPEG, PNG, etc.) and PDFs.
  3. Arrange files in the desired order.
  4. Click Combine. Acrobat converts images if needed.
  5. Save your merged PDF.

If pages disappear after combining, check if any source file had hidden or password-protected pages. Sometimes, files with restrictions don't merge properly.

Review each individual file before merging to ensure all pages are visible and accessible.

  • Check each source PDF for restrictions
  • open up or unprotect files if needed
  • Preview all files before merging
  • Try combining files one at a time
  • Update Acrobat software

Acrobat can merge signed PDFs, but sometimes digital signatures become invalid when files are combined. To keep signatures valid, use the Combine Signed Files task—some workflows require each original signature to stay in its own document.

For critical signed documents, it's best to keep files separate or re-sign after merging.

  • Signatures may break after merging
  • Original signatures are safest in separate files
  • Re-sign the document after merge if needed
  • Check signature status after combining

Combining receipts makes it easier to submit, store, and review all your expenses in one file. This helps track spending and prevents lost paperwork. Many Production Assistants compile receipts packages for efficient reporting.

It also saves time for reviewers and ensures everything is in order.

  • Easier expense submission
  • Organized tracking
  • Quicker review by managers
  • Less chance of losing documents
  • Cleaner digital records

Use Highlight Dreamweaver Diffs to compare files and mark changes before combining. This is useful for editors and teams who need to see updates before merging into a final document.

Comparing before merging helps avoid version issues.

  1. Open Tools > Compare Files in Acrobat.
  2. Select the two PDFs you want to compare.
  3. Review highlighted differences.
  4. Save the compared file if needed.
  5. Combine files after confirming changes.

Acrobat itself doesn't use AI to combine PDFs, but you can automate combining files with built-in Actions or third-party scripts for repetitive tasks. This can save time when compiling contract packages or invoices.

Some cloud tools offer AI features, but Acrobat's main combine tool is manual or batch-based.

  • Acrobat supports automation via Actions
  • No built-in AI, but batch tools exist
  • Third-party scripts can help
  • Manual combining is always possible

It's usually faster and more efficient to combine files first, then compress the final PDF. This way, you only compress once and get a smaller overall file. If you compress first, the final merged file might still get large.

Compress after merging to get the best results.

MethodFile SizeBest Use
Combine then compressSmallestEfficient, saves time
Compress then combineLargerLess efficient
No compressionLargestMaximum quality, big files

Once your files are combined, use Acrobat's organize and edit tools to rearrange pages, add text, or insert bookmarks. This helps make your PDF clear and professional.

Many users move from combine to edit or organize to put the finishing touches on their documents. Editing is a common next step after merging.

  • Rearrange or delete pages
  • Insert bookmarks or comments
  • Edit text and images
  • Split or extract new files if needed