Add 50 attachment and portfolio code examples

[agent-aspose-pdf-examples]

working-with-attachments

50 code example(s) for the working-with-attachments category.
Target: Aspose.PDF for .NET 26.5.0

Examples

#	Example	Difficulty
1	Add File Attachment to PDF	beginner
2	Embed File from Byte Array as PDF Attachment	intermediate
3	Add Multiple Attachments to a PDF	beginner
4	Set Attachment Description and MIME Type in PDF	intermediate
5	Add Attachment to PDF and Save to Output Folder	beginner
6	List PDF Attachments with Names and Sizes	beginner
7	Extract Embedded Attachment from PDF	intermediate
8	Extract PDF Attachments to Separate Subfolders	intermediate
9	Remove PDF Attachment by Index	beginner
10	Delete PDF Attachment by Filename	beginner
11	Extract PDF Attachment Metadata to JSON	intermediate
12	Update Attachment Description in PDF	intermediate
13	Add Attachment to Password-Protected PDF	intermediate
14	Extract Attachments from Encrypted PDF	intermediate
15	Add File Attachments with Size Validation to PDF	intermediate
16	Batch Add Attachment to PDFs	intermediate
17	Batch Extract PDF Attachments into a ZIP Archive	intermediate
18	Create PDF Portfolio with Attachments	intermediate
19	Add a Word Document to a PDF Portfolio	beginner
20	Insert Excel Workbook into PDF Portfolio with Description	beginner
21	Embed Image as Attachment in PDF Portfolio	beginner
22	Add PDF to Existing PDF Portfolio	beginner
23	Add Multiple Files to PDF Portfolio	beginner
24	Compress and Save PDF Portfolio	beginner
25	Extract Embedded Files from PDF Portfolio	beginner
26	Extract Embedded File from PDF Portfolio by Index	beginner
27	Remove Embedded File from PDF Portfolio by Index	intermediate
28	Delete PDF Outline Items by Description	intermediate
29	Reorder PDF Outline (Bookmark) Items	intermediate
30	Apply Custom Visual Template to PDF Portfolio	intermediate
31	Set Page Thumbnails Using ThumbnailDevice	intermediate
32	Merge PDF Portfolios and Preserve Embedded Files	intermediate
33	Create PDF Portfolio with Embedded Files	intermediate
34	Flatten PDF Portfolio to Standard PDF	beginner
35	Read PDF Metadata and Count Attachments	beginner
36	Generate CSV Report of PDF Attachments	intermediate
37	Add In-Memory Attachment to PDF Using Aspose.Pdf	intermediate
38	Attach Remote File to PDF as File Attachment	intermediate
39	Add File Attachment to PDF with Error Handling	intermediate
40	Validate MIME Type and Add File Attachment to PDF	intermediate
41	Measure Performance of Adding, Extracting, and Removing PDF Attachment...	intermediate
42	Embed File Attachment and Add Metadata to PDF	intermediate
43	Add Unicode File Attachment to PDF	beginner
44	Extract PDF Attachments and Compute SHA‑256 Hashes	intermediate
45	Batch Watermark PDF Attachments	intermediate
46	Add File Attachment to PDF with Retry on Network Share	intermediate
47	Extract PDF Attachments in Parallel	intermediate
48	Verify File Attachment Increases PDF Size	beginner
49	Integration Tests for Attachment Removal	beginner
50	Embed Attachment Metadata as Hidden XML Annotation	intermediate

Key APIs Used

Aspose.Pdf.AI.Attachment, Aspose.Pdf.AI.ThreadMessageResponse, Aspose.Pdf.Annotations.Annotation, Aspose.Pdf.Annotations.AnnotationFlags, Aspose.Pdf.Annotations.FileAttachmentAnnotation, Aspose.Pdf.Annotations.FileIcon, Aspose.Pdf.Annotations.FileSpecification, Aspose.Pdf.Collection, Aspose.Pdf.Collection.Add, Aspose.Pdf.Color, Aspose.Pdf.Devices.ThumbnailDevice, Aspose.Pdf.Document, Aspose.Pdf.Document..ctor(string, string), Aspose.Pdf.Document.Decrypt(), Aspose.Pdf.Document.EmbeddedFiles, Aspose.Pdf.Document.EmbeddedFiles.Add, Aspose.Pdf.Document.Flatten, Aspose.Pdf.Document.Info, Aspose.Pdf.Document.Merge, Aspose.Pdf.Document.OptimizeResources, Aspose.Pdf.Document.Pages.Add, Aspose.Pdf.Document.Save, Aspose.Pdf.DocumentInfo, Aspose.Pdf.Drawing.Graph, Aspose.Pdf.Drawing.GraphInfo, Aspose.Pdf.Drawing.Line, Aspose.Pdf.Drawing.Rectangle, Aspose.Pdf.EmbeddedFile, Aspose.Pdf.EmbeddedFile.Data, Aspose.Pdf.EmbeddedFile.GetFile
(+36 more)

Tags

Aspose.Pdf annotation aspnet aspose aspose-pdf aspose.pdf attachment attachments batch bookmark c# collection compression csharp csv decryption delete description document download

Difficulty Distribution

• beginner: 19 example(s)
• intermediate: 31 example(s)

Pipeline Stages

• LLM Fix: 32
• Baseline (1st try): 12
• Regen with KB: 5
• Final LLM Recovery: 1

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