CLI tips

• .NET runtime check: dotnet --list-runtimes
• GemBox .NET component version: dotnet list package
• If you need GemBox API details, look them up locally in the XML docs. Example GemBox.Spreadsheet NuGet paths:
• Linux/macOS: ~/.nuget/packages/gembox.spreadsheet/2025.12.105/lib/*/GemBox.Spreadsheet.xml
• PowerShell: $env:USERPROFILE\.nuget\packages\gembox.spreadsheet\2025.12.105\lib\*\GemBox.Spreadsheet.xml
• Use ripgrep to search the XML. E.g.:
• Linux/macOS: rg -n "Autofit" ~/.nuget/packages/gembox.spreadsheet/2025.12.105/lib/**/GemBox.Spreadsheet.xml
• If the API is unclear, scan namespaces and remarks/examples in the doc XML before coding. E.g.:
• Linux/macOS: rg -n "namespace GemBox|Drawing|PivotTables" ~/.nuget/packages/gembox.spreadsheet/2025.12.105/lib/**/GemBox.Spreadsheet.xml

Online search

If you don't find relevant docs via CLI, and you have network access, search online:

1. Open a relevant official example page, as examples listed below provide the most information. E.g, if you need custom fonts in GemBox.Document, the base URL is "https://www.gemboxsoftware.com/document/examples/". The specific example that mentions fonts is "fonts/103", so open "https://www.gemboxsoftware.com/document/examples/fonts/103" page.
2. If examples are insufficient, search the official API documentation of a specific component.

E.g. GemBox.Spreadsheet online search filter: "site:https://www.gemboxsoftware.com/spreadsheet/docs"

Validation

Once you are finished, validate the code by compiling the project. If there are errors related to GemBox API usage, modify the code accordingly. Ignore compilation errors that are not related to GemBox or not caused by your edits.

GemBox.Spreadsheet examples URLs

BASE: https://www.gemboxsoftware.com/spreadsheet/examples/

SPREADSHEET EXAMPLES:

asp-net-core-create-excel/5601

asp-net-excel-export-gridview/5101

asp-net-excel-viewer/6012

blazor-create-excel/5602

c-sharp-convert-excel-to-image/405

c-sharp-convert-excel-to-pdf/404

c-sharp-create-write-excel-file/402

c-sharp-excel-range/204

c-sharp-export-datatable-dataset-to-excel/501

c-sharp-export-excel-to-datatable/502

c-sharp-microsoft-office-interop-excel-automation/6004

c-sharp-open-read-excel-file/401

c-sharp-read-write-csv/122

c-sharp-vb-net-convert-excel-html/117

c-sharp-vb-net-create-excel-chart-sheet/302

c-sharp-vb-net-create-excel-tables/119

c-sharp-vb-net-excel-chart-formatting/306

c-sharp-vb-net-excel-conditional-formatting/105

c-sharp-vb-net-excel-form-controls/123

c-sharp-vb-net-excel-row-column-autofit/108

c-sharp-vb-net-excel-style-formatting/202

c-sharp-vb-net-import-export-excel-datagridview/5301

c-sharp-vb-net-print-excel/451

c-sharp-vb-net-xls-decryption/707

convert-excel-table-range-vb-net-c-sharp/6011

convert-import-write-json-to-excel-vb-net-c-sharp/6010

convert-xls-xlsx-ods-csv-html-net-c-sharp/6001

create-excel-charts/301

create-excel-file-maui/5802

create-excel-file-xamarin/5801

create-excel-files-c-sharp/6013

create-excel-pdf-on-azure/5901

create-excel-pdf-on-docker-net-core/5902

create-excel-pdf-on-linux-net-core/5701

create-excel-pivot-tables/114

create-read-write-excel-classic-asp/5501

create-read-write-excel-php/5502

create-read-write-excel-python/5503

edit-save-excel-template/403

excel-autofilter/112

excel-calculations-c-sharp-vb-net/6022

excel-cell-comments/208

excel-cell-data-types/201

excel-cell-hyperlinks/207

excel-cell-inline-formatting/203

excel-cell-number-format/205

excel-chart-components/304

excel-charts-guide-c-sharp/6019

excel-data-validation/106

excel-defined-names/214

excel-encryption/701

excel-find-replace-text/109

excel-formulas/206

excel-freeze-split-panes/102

excel-grouping/101

excel-header-footer-formatting/6021

excel-headers-footers/210

excel-images/209

excel-performance-metrics/5401

excel-preservation/801

excel-print-title-area/104

excel-print-view-options/103

excel-properties/107

excel-shapes/211

excel-sheet-copy-delete/111

excel-sheet-protection/704

excel-textboxes/212

excel-workbook-protection/705

excel-wpf/5201

excel-xlsx-digital-signature/706

fixed-columns-width-text/118

fonts/115

free-trial-professional/1001

getting-started/601

merge-excel-cells-c-sharp-vb-net/213

open-read-excel-files-c-sharp/6009

pdf-digital-signature/703

pdf-encryption/702

progress-reporting-and-cancellation/121

protecting-excel-data-c-sharp/6020

right-to-left-text/120

sort-data-excel/113

unit-conversion-excel/116

vba-macros/124

xlsx-write-protection/708

GemBox.Document examples

BASE: https://www.gemboxsoftware.com/document/examples/

DOCUMENT EXAMPLES:

asp-net-core-create-word-docx-pdf/5601

asp-net-create-generate-export-pdf-word/5101

auto-hyphenation/109

blazor-create-word/5602

c-sharp-convert-aspx-to-pdf/6002

c-sharp-convert-html-to-pdf/307

c-sharp-convert-pdf-to-docx/308

c-sharp-convert-word-to-from-html/105

c-sharp-convert-word-to-image/306

c-sharp-convert-word-to-pdf/304

c-sharp-convert-word-to-pdf/6007

c-sharp-microsoft-office-interop-word-automation/6005

c-sharp-read-extract-pdf-tables/305

c-sharp-vb-net-create-generate-pdf/6004

c-sharp-vb-net-create-update-word-toc/207

c-sharp-vb-net-create-word-form/701

c-sharp-vb-net-create-write-word-file/302

c-sharp-vb-net-docx-encryption/1102

c-sharp-vb-net-edit-save-word-template/303

c-sharp-vb-net-find-replace-word/405

c-sharp-vb-net-mail-merge-word/901

c-sharp-vb-net-manipulate-content-word/403

c-sharp-vb-net-open-read-word-file/301

c-sharp-vb-net-pdf-digital-signature/1104

c-sharp-vb-net-pdf-encryption/1103

c-sharp-vb-net-print-word/351

c-sharp-vb-net-read-word-form/702

c-sharp-vb-net-update-word-form/703

c-sharp-vb-net-word-performance/5401

cloning/501

combine-word-file-c-sharp-vb-net/502

content-controls/106

create-read-write-word-pdf-classic-asp/5501

create-read-write-word-pdf-php/5502

create-read-write-word-pdf-python/5503

create-table-in-word-csharp/1201

create-word-file-maui/5802

create-word-file-xamarin/5801

create-word-pdf-on-azure-functions-app-service/5901

create-word-pdf-on-docker-net-core/5902

create-word-pdf-on-linux-net-core/5701

customize-mail-merge/904

docx-digital-signature/1106

docx-write-protection/1101

extract-individual-pages/112

find-replace-word-csharp/6003

fonts/103

free-trial-professional/1301

generate-barcodes-qr-codes-csharp-vb-net/217

getting-started/801

html-to-pdf-converter-csharp/6001

iterating/503

load-process-pdf-csharp/6006

mail-merge-clear-options/905

mail-merge-if-fields/902

mail-merge-labels/909

mail-merge-pictures/908

mail-merge-ranges/903

merge-barcodes-qr-codes/907

nested-mail-merge/906

progress-reporting-and-cancellation/108

restrict-editing/1105

right-to-left-text/107

unit-conversion/104

vba-macros/111

word-bookmarks-hyperlinks/204

word-breaks/205

word-character-formatting/601

word-charts/213

word-comments/215

word-editor-asp-net-mvc/5102

word-editor-windows-forms/5301

word-editor-wpf/5203

word-fields/206

word-footnote-endnote/212

word-header-footer/208

word-lists/603

word-merge-cells/1203

word-page-setup/209

word-paragraph-formatting/602

word-pictures/201

word-preservation/1001

word-properties/211

word-shapes/203

word-styles/604

word-table-formatting/1204

word-table-styles/1205

word-textboxes/202

word-track-changes/216

word-view-options/210

word-watermarks/214

word-wpf-xpsdocument-imagesource/5201

GemBox.Pdf examples URLs

BASE: https://www.gemboxsoftware.com/pdf/examples/

PDF EXAMPLES:

add-export-images-pdf/6001

asp-net-core-create-pdf/1401

basic-pdf-objects/402

blazor-create-pdf/1402

c-sharp-convert-pdf-to-image/208

c-sharp-export-pdf-interactive-form-data/503

c-sharp-pdf-associated-files/704

c-sharp-pdf-embedded-files/701

c-sharp-pdf-file-attachment-annotations/702

c-sharp-pdf-portfolios/703

c-sharp-vb-add-pdf-shapes-paths/306

c-sharp-vb-export-import-images-to-pdf/206

c-sharp-vb-net-create-write-pdf-file/209

c-sharp-vb-net-merge-pdf/201

c-sharp-vb-net-ocr-pdf/408

c-sharp-vb-net-pdf-advanced-electronic-signature-pades/1103

c-sharp-vb-net-pdf-bookmarks-outlines/301

c-sharp-vb-net-pdf-digital-signature-pkcs11-cryptoki/1104

c-sharp-vb-net-pdf-digital-signature-validation/1105

c-sharp-vb-net-pdf-digital-signature/1102

c-sharp-vb-net-pdf-pages/401

c-sharp-vb-net-read-pdf/205

c-sharp-vb-net-redact-content-pdf/410

c-sharp-vb-net-split-pdf/202

c-sharp-vb-pdf-hyperlinks/308

charts-barcodes-slides/309

cloning-pdf-pages/203

convert-pdf-image-png-jpg-csharp/6004

create-pdf-file-maui/1502

create-pdf-file-xamarin/1501

create-pdf-interactive-form-fields/505

create-pdf-on-azure-functions-app-service/1601

create-pdf-on-docker-net-core/1602

create-pdf-on-linux-net-core/1301

decrypt-encrypt-pdf-file/1101

extract-content-pdf/6005

fill-in-pdf-interactive-form/502

flatten-pdf-interactive-form-fields/506

fonts/404

free-trial-professional/601

getting-started/101

incremental-update/204

interactive-form-actions/504

pdf-content-formatting/307

pdf-content-groups/409

pdf-content-streams-and-resources/403

pdf-digital-signature-workflows/1106

pdf-document-properties/302

pdf-form-xobjects/405

pdf-header-footer/304

pdf-marked-content/407

pdf-security-c-sharp/6003

pdf-table-of-contents/310

pdf-viewer-preferences/303

pdf-watermarks/305

pdf-xpsdocument-wpf/1001

png-jpg-images-to-pdf/210

print-pdf-c-sharp/6002

read-merge-split-pdf-classic-asp/1201

read-merge-split-pdf-php/1202

read-merge-split-pdf-python/1203

read-pdf-interactive-form-fields/501

GemBox.Presentation examples URLs

BASE: https://www.gemboxsoftware.com/presentation/examples/

PRESENTATION EXAMPLES:

asp-net-core-create-powerpoint-pptx-pdf/2001

asp-net-powerpoint-export/1601

blazor-create-powerpoint/2002

c-sharp-clone-slides/205

c-sharp-convert-powerpoint-to-image/207

c-sharp-convert-powerpoint-to-pdf/204

c-sharp-print-powerpoint/251

c-sharp-vb-net-create-write-powerpoint/202

c-sharp-vb-net-find-replace-text-powerpoint/206

c-sharp-vb-net-open-read-powerpoint/201

c-sharp-vb-net-powerpoint-performance/1501

c-sharp-vb-net-powerpoint-slide-notes/411

c-sharp-vb-net-powerpoint-slides/401

c-sharp-vb-net-pptx-encryption/803

c-sharp-vb-net-pptx/203

create-format-powerpoint-tables-csharp/6001

create-powerpoint-file-maui/2102

create-powerpoint-file-xamarin/2101

create-powerpoint-pdf-on-azure-functions-app-service/2201

create-powerpoint-pdf-on-docker-net-core/2202

create-powerpoint-pdf-on-linux-net-core/1901

create-read-write-powerpoint-classic-asp/1801

create-read-write-powerpoint-php/1802

create-read-write-powerpoint-python/1803

fonts/503

free-trial-professional/901

getting-started/101

pdf-digital-signature/802

pdf-encryption/801

powerpoint-audio-video/406

powerpoint-character-formatting/304

powerpoint-charts/412

powerpoint-comments/408

powerpoint-header-footer/407

powerpoint-hyperlinks/409

powerpoint-list-formatting/305

powerpoint-load-html/208

powerpoint-paragraph-formatting/303

powerpoint-pictures/405

powerpoint-placeholders/402

powerpoint-preservation/701

powerpoint-properties/410

powerpoint-shape-formatting/301

powerpoint-shapes/403

powerpoint-slide-transition/501

powerpoint-slideshow/502

powerpoint-table-formatting/602

powerpoint-tables/601

powerpoint-textbox-formatting/302

powerpoint-textboxes/404

powerpoint-wpf/1701

pptx-digital-signature/805

pptx-modify-protection/804

right-to-left-text/505

unit-conversion/504

vba-macros/506

GemBox.Email examples URLs

BASE: https://www.gemboxsoftware.com/email/examples/

EMAIL EXAMPLES:

add-calendar-to-mail-message/903

asp-net-core-mail-message/5101

authenticate-using-oauth-c-sharp-vb/109

blazor-mail-message/5102

c-sharp-convert-email-to-pdf/107

c-sharp-create-send-emails/6001

c-sharp-imap-client/301

c-sharp-oauth-microsoft365-gmail/6002

c-sharp-outlook-msg-eml-mht/106

c-sharp-pop3-client/701

c-sharp-send-bulk-email/804

c-sharp-send-word-as-email/108

c-sharp-smtp-client/801

c-sharp-validate-email/401

c-sharp-vb-net-create-email/601

c-sharp-vb-net-load-email/105

c-sharp-vb-net-mail-merge-datatable/501

c-sharp-vb-net-save-email/104

c-sharp-vb-net-search-emails/308

c-sharp-vb-net-sign-email/1202

create-and-save-calendar/901

folder-flags/305

free-trial-professional/1101

get-email-message-maui/2002

get-email-message-xamarin/2001

getting-started/201

headers/604

imap-email-folders/302

imap-idle/310

list-email-messages-imap/303

list-email-messages-pop/702

load-calendar/902

mailbox-info/703

manipulate-messages-exchange-ews/1002

manipulate-messages-microsoft-graph/3002

mbox/605

message-flags/306

message-headers-imap/307

message-headers-pop/705

modify-folders-exchange-ews/1003

modify-folders-microsoft-graph/3003

receive-read-email-c-sharp-vb/102

reply-forward-email-c-sharp-vb-net/103

search-email-exchange-ews/1004

search-email-microsoft-graph/3004

send-email-c-sharp-vb-asp-net/101

send-email-exchange-ews/1001

send-email-microsoft-graph/3001

send-html-email-with-attachment-c-sharp-vb-net/603

ssl-certificate-validation-imap/309

ssl-certificate-validation-pop/706

ssl-certificate-validation-smtp/803

upload-email-message-exchange/1005

upload-email-message-imap/311

upload-email-message-microsoft-graph/3005

GemBox.Imaging examples URLs

BASE: https://www.gemboxsoftware.com/imaging/examples/

IMAGING EXAMPLES:

asp-net-core-crop-image/2101

c-sharp-vb-net-apply-filter-to-image/203

c-sharp-vb-net-convert-image/202

c-sharp-vb-net-crop-image/302

c-sharp-vb-net-merge-split-frames/204

c-sharp-vb-net-read-image/201

c-sharp-vb-net-resize-image/301

c-sharp-vb-net-rotate-flip-image/303

free-trial-professional/1001

getting-started/101

load-edit-save-image-on-linux-net-core/2103

read-image-on-docker-net-core/2102

rotate-flip-image-maui/2105

rotate-flip-image-xamarin/2104

GemBox.PdfViewer examples URLs

BASE: https://www.gemboxsoftware.com/pdfviewer/examples/

PDFVIEWER EXAMPLES:

angular-pdf-viewer/205

asp-net-core-pdf-viewer/201

demo/301

free-trial-professional/107

getting-started/101

how-to-digitally-sign-pdf/108

navigation-and-zooming/102

react-pdf-viewer/204

search/103

svelte-pdf-viewer/206

themes/104

themes/105

ui-customization/106

vanilla-js-pdf-viewer/202

vue-js-pdf-viewer/203